Relevant bibliographies by topics / Ferroelectric perovskite

Academic literature on the topic 'Ferroelectric perovskite'

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Published: 9 March 2023
Last updated: 6 September 2023

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Journal articles on the topic "Ferroelectric perovskite"

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Osman, Rozana A. M., Mohd Sobri Idris, Zul Azhar Zahid Jamal, Sanna Taking, Syarifah Norfaezah Sabki, Prabakaran A. L. Poopalan, Mohd Natashah Norizan, and Ili Salwani Mohamad. "Ferroelectric and Relaxor Ferroelectric to Paralectric Transition Based on Lead Magnesium Niobate (PMN) Materials." Advanced Materials Research 795 (September 2013): 658–63. http://dx.doi.org/10.4028/www.scientific.net/amr.795.658.

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First ferroelectric materials were found in Rochelle salt was in a perovskite structure. Lead Magnesium Niobate (PMN) is a perovskites with a formula of PbMg1/3Nb2/3O3 (PMN) and are typical representatives for most of all ferroelectrics materials with relaxor characteristic. It posses high dielectric permittivity which nearly ~ 20,000[ with a broad dielectric permittivity characteristic, known as relaxor ferroelectric below room temperature. Some of the researcher might think that the transition from relaxor ferroelectric to paraelectric is similar to the characteristic as observed from ferroelectric to paraelectric, but it is not necessary. The puzzling is how do we categorise them. How is the domain structure look like typically in ceramic materials.
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Baptista, Rosa M. F., Gonçalo Moreira, Bruna Silva, João Oliveira, Bernardo Almeida, Cidália Castro, Pedro V. Rodrigues, Ana Machado, Michael Belsley, and Etelvina de Matos Gomes. "Lead-Free MDABCO-NH4I3 Perovskite Crystals Embedded in Electrospun Nanofibers." Materials 15, no. 23 (November 25, 2022): 8397. http://dx.doi.org/10.3390/ma15238397.

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In this work, we introduce lead-free organic ferroelectric perovskite N-methyl-N′-diazabicyclo[2.2.2]octonium)–ammonium triiodide (MDABCO-NH4I3) nanocrystals embedded in three different polymer fibers fabricated by the electrospinning technique, as mechanical energy harvesters. Molecular ferroelectrics offer the advantage of structural diversity and tunability, easy fabrication, and mechanical flexibility. Organic–inorganic hybrid materials are new low-symmetry emerging materials that may be used as energy harvesters because of their piezoelectric or ferroelectric properties. Among these, ferroelectric metal-free perovskites are a class of recently discovered multifunctional materials. The doped nanofibers, which are very flexible and have a high Young modulus, behave as active piezoelectric energy harvesting sources that produce a piezoelectric voltage coefficient up to geff = 3.6 VmN−1 and show a blue intense luminescence band at 325 nm. In this work, the pyroelectric coefficient is reported for the MDABCO-NH4I3 perovskite inserted in electrospun fibers. At the ferroelectric–paraelectric phase transition, the embedded nanocrystals display a pyroelectric coefficient as high as 194 × 10−6 Cm−2k−1, within the same order of magnitude as that reported for the state-of-the-art bulk ferroelectric triglycine sulfate (TGS). The perovskite nanocrystals embedded into the polymer fibers remain stable in their piezoelectric output response, and no degradation is caused by oxidation, making the piezoelectric perovskite nanofibers suitable to be used as flexible energy harvesters.
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ZHU, XINHUA, and ZHIGUO LIU. "SIZE EFFECTS IN PEROVSKITE FERROELECTRIC NANOSTRUCTURES: CURRENT PROGRESS AND FUTURE PERSPECTIVES." Journal of Advanced Dielectrics 01, no. 03 (July 2011): 289–301. http://dx.doi.org/10.1142/s2010135x11000392.

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Perovskite ferroelectric nanostructures offer a wide range of functional properties (e.g., dielectric switchability, piezoelectricity, pyroelectricity, high permittivities and strong electro-optic effects), which have received much attention in the fields of microelectronic devices miniaturization over the last few years. Pronounced size effects of the functional properties have been demonstrated in the perovskite ferroelectric nanostructures. Besides its intrinsic scientific value, fundamental understanding of the size effects in perovskite ferroelectric nanostructures has become critical item for developing a new generation of revolutionary nanodevices. In this article, a comprehensive review of the state-of-the-art research progress on the size effects in perovskite ferroelectric nanostructures which have been achieved from both experiment and theory is provided. It begins with a historical perspective of the size effects in perovskite ferroelectrics, and then highlight the recent progress on the theoretical studies of the size effects in perovskite ferroelectric nanostructures which have been achieved by using different numerical approaches (e.g., phenomenological approaches, first-principle computations and the Ising model in a transverse field). The current progress of the experimental testing of the size effects in perovskite ferroelectric nanostructures (e.g., nanoparticles, nanowires, nanotubes and nanofilms) is summarized. Finally, the perspectives toward the future challenges of the size effects in perovskite ferroelectric nanostructures is reviewed.
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Abbasi, Pedram, David P. Fenning, and Tod A. Pascal. "Electrocatalytic Hydrogen Evolution on Ferroelectric Perovskite Heterostructures." ECS Meeting Abstracts MA2022-01, no. 38 (July 7, 2022): 1691. http://dx.doi.org/10.1149/ma2022-01381691mtgabs.

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Ferroelectric perovskites have recently attracted interest for a wide range of photocatalytic and electrochemical applications1 due to their intrinsic properties for light adsorption2, electron–hole pair separation3–5 and a hypothesized enhancement of catalytic activity by polarization switching6–8. However, most of the well-known ferroelectric perovskites e.g., BaTiO3 and Pb (Zr, Ti)O3 are known to have limited activity toward electrocatalytic reactions e.g. hydrogen evolution (HER) and water splitting.2 In this work, we demonstrate that introducing only a few mono layers of SrRuO3, a metallic oxide from perovskite family, can significantly enhance the catalytic activity of BaTiO3 toward HER. Using a combination of first principle DFT+U calculations and experiments on thin films grown by molecular beam epitaxy, we investigated the activity of heterostructures of different thicknesses toward HER in an alkaline electrolyte. Computational results show that the Gibbs free energy barrier of H* adsorption on one monolayer of SrRuO3 atop ferroelectric BaTiO3 is at least two times smaller than BaTiO3, depending on the adsorption site or the direction of ferroelectric polarization. In line with the findings from our DFT calculations, our experimental results confirm significantly higher current density and lower charge transfer resistance toward hydrogen evolution for SrRuO3/BaTiO3 heterostructures compared to bare BaTiO3 surfaces. Harnessing oxide heterostructures, as demonstrated here, opens the door to leveraging the unique properties of ferroelectrics as supports to promote electrocatalytic activity.
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Onodera, Akira, Masanori Fukunaga, and Masaki Takesada. "Ferroelectric Instability and Dimensionality in Bi-Layered Perovskites and Thin Films." Advances in Condensed Matter Physics 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/714625.

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The dielectric and thermal properties of Bi (bismuth)-layered perovskite SrBi2Ta2O9(SBT) are discussed in comparison with ferroelectric thin BaTiO3films. Although these two perovskites exhibit quite a different nature, the dielectric properties of BaTiO3thin film are similar to those in bulk SBT. The dielectric properties and pseudo-two-dimensional structure between SBT and thin film suggest that the bulk layered ferroelectric SBT is a good model of ultra-thin ferroelectric film with two perovskite layers, free from any misfit lattice strain with substrate and surface charge at the interface with electrodes. Based on the mechanism of ferroelectric phase transition of SBT, it seems plausible that the ferroelectric interaction is still prominent but shows a crossover from ferroelectric to antiferroelectric interaction in perovskite ultra-thin films along the tetragonal axis.
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Benedek, Nicole A., and Michael A. Hayward. "Hybrid Improper Ferroelectricity: A Theoretical, Computational, and Synthetic Perspective." Annual Review of Materials Research 52, no. 1 (July 1, 2022): 331–55. http://dx.doi.org/10.1146/annurev-matsci-080819-010313.

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We review the theoretical, computational, and synthetic literature on hybrid improper ferroelectricity in layered perovskite oxides. Different ferroelectric mechanisms are described and compared, and their elucidation using theory and first-principles calculations is discussed. We also highlight the connections between crystal chemistry and the physical mechanisms of ferroelectricity. The experimental literature on hybrid improper ferroelectrics is surveyed, with a particular emphasis on cation-ordered double perovskites, Ruddlesden–Popper and Dion–Jacobson phases. We discuss preparative routes for synthesizing hybrid improper ferroelectrics in all three families and the conditions under which different phases can be stabilized. Finally, we survey some synthetic opportunities for expanding the family of hybrid improper ferroelectrics.
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Zhang, Zhen, Zhaokuan Wen, Ting Li, Zhiguo Wang, Zhiyong Liu, Xiaxia Liao, Shanming Ke, and Longlong Shu. "Flexoelectric aging effect in ferroelectric materials." Journal of Applied Physics 133, no. 5 (February 7, 2023): 054102. http://dx.doi.org/10.1063/5.0134531.

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In spite of the flexoelectric effect being a universal phenomenon in the ferroelectric perovskites, the current understanding of flexoelectric aging in ferroelectrics is, actually, rather incomplete. In this paper, we have fabricated a series of Mn-doped BaTiO3 perovskite ceramics (BaTi1–xMnxO3, x = 0.1% and 1%, BTMO) to systematically investigate the corresponding flexoelectric aging behavior by controlling the concentration of Mn. We found that the variation of Mn dopant significantly effects the Curie temperature, dielectric constant, flexoelectric aging, and flexoelectric coefficient of the BTMO ceramics. Especially for the BTMO (0.1%) ceramics, obvious ferroelectric aging and flexoelectric aging phenomenon are observed at room temperature. The main reason for aging of BTMO ceramics is that the doping of Mn introduces oxygen vacancies, which tend to be stable under the action of strain gradient and electric field. Therefore, the results presented in this paper verify that the flexoelectric aging in Mn-doped BTO ceramics is closely related to ferroelectric fatigue.
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Xu, Lan, Zujian Wang, Bin Su, Chenxi Wang, Xiaoming Yang, Rongbing Su, Xifa Long, and Chao He. "Origin of Structural Change Driven by A-Site Lanthanide Doping in ABO3-Type Perovskite Ferroelectrics." Crystals 10, no. 6 (May 29, 2020): 434. http://dx.doi.org/10.3390/cryst10060434.

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Lanthanide doping is widely employed to tune structural change temperature and electrical properties in ABO3-type perovskite ferroelectric materials. However, the reason that A-site lanthanide doping leads to the decrease of the Curie temperature is still not clear. Based on the reported Curie temperature of lanthanides (Ln) doped in two classic ferroelectrics PbTiO3 and BaTiO3 with A2+B4+O3-type perovskite structure, we discussed the relationship between the decrease rate of Curie temperature (ΔTC) and the bond strength variance of A-site cation (σ). For Nd ion doped Pb(Mg1/3Nb2/3)O3-PbTiO3 (Nd-PMNT) ferroelectric crystal as an example, the internal factors of the dramatic decline of the Curie temperature induced by A-site Nd doping were investigated under a systematic study. The strong covalent bonds of Ln-O play an important role in A-site Ln composition-induced structural change from ferroelectric to paraelectric phase, and it is responsible for the significant decrease in the Curie temperature. It is proposed that the cells become cubic around the Ln ions due to the strong covalent energy of Ln-O bonding in A-site Ln doped A2+B4+O3 perovskite ferroelectrics.
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Yin, Jie, Gang Liu, Chunlin Zhao, Yanli Huang, Zhitao Li, Xingmin Zhang, Ke Wang, and Jiagang Wu. "Perovskite Na0.5Bi0.5TiO3: a potential family of peculiar lead-free electrostrictors." Journal of Materials Chemistry A 7, no. 22 (2019): 13658–70. http://dx.doi.org/10.1039/c9ta03140e.

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For perovskite ferroelectric oxides, the composition-induced transition from ferroelectrics to relaxors can enhance their electrostrictive coefficient Q33 remarkably, and has been attracting more and more attention in recent years.
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Xue, Kan-Hao, Leonardo R. C. Fonseca, and Xiang-Shui Miao. "Ferroelectric fatigue in layered perovskites from self-energy corrected density functional theory." RSC Advances 7, no. 35 (2017): 21856–68. http://dx.doi.org/10.1039/c7ra01650f.

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We employed GGA-1/2 to investigate the band alignment between platinum and various layered perovskite Aurivillius ferroelectrics. A model is proposed for ferroelectric fatigue in bismuth titanate based on our calculation.
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Dissertations / Theses on the topic "Ferroelectric perovskite"

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Zednik, Ricardo Johann. "Stress effects in ferroelectric perovskite thin-films /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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Chu, Fan. "The ferroelectric phase transition in complex perovskite relaxors /." [S.l.] : [s.n.], 1994. http://library.epfl.ch/theses/?nr=1248.

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Whittle, Thomas Anthony. "A Structural Investigation of Perovskite and Tungsten Bronze Type Ferroic Materials." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/14586.

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This thesis set out to investigate lead free ferroic materials with perovskite and tungsten bronze type structures, primarily focussing on the relationship between composition, temperature and crystal structure. A combination of diffraction techniques were employed to investigate the crystal structures. Additionally, other techniques including XANES, SEM, TGA, DSC and ferroic peroperty measurements were also employed to further illuminate these compounds. The first system investigated was the defect perovskite Sr0.8Ti0.6-yZryNb0.4O3, 0.0 ≤ y ≤ 0.6. It was found that neutron powder diffraction data were essential for determining the phase boundary composition. Second order compositional and temperature phase transitions were observed. Increasing the zirconium content increased octahedral tilting and led to higher transition temperatures. Local ordering was determined to be highly probable and it was found that the presence of vacancies extended the range of the high symmetry phase. The second system investigated was the BaxSr3-xTi1-yZryNb4O15, 0.0 ≤ x ≤ 3.0, 0.0 ≤ y ≤ 1.0, tungsten bronze type system. Barium rich compositions were found to adopt a tetragonal structure, while strontium rich compositions adopted an orthorhombic structure. Increasing the zirconium content of samples was seen to make the orthorhombic phase persist further. A large focus was placed on determining the structure of Sr3TiNb4O15 as a model for all orthorhombic compounds. A new structural model was proposed for Sr3TiNb4O15 distinct from those previously published. All orthorhombic compositions were observed to undergo first order phase transitions to the tetragonal structure on heating. The barium and strontium atoms were found to order onto two crystallographically distinct A sites. It was found that the tungsten bronze tolerance factor could be used as a predictive tool for the crystal symmetry of these materials. All compounds in this system for which ferroelectric measurements were performed displayed ferroelectric hysteresis behaviour.
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Zhang, Qingteng. "Properties of Ferroelectric Perovskite Structures under Non-equilibrium Conditions." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4422.

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Ferroelectric materials have received lots of attention thanks to their intriguing properties such as the piezoelectric and pyroelectric effects, as well as the large dielectric constants and the spontaneous polarization which can potentially be used for information storage. In particular, perovskite crystal has a very simple unit cell structure yet a very rich phase transition diagram, which makes it one of the most intensively studied ferroelectric materials. In this dissertation, we use effective Hamiltonian, a first-principles-based computational technique to study the finite-temperature properties of ferroelectric perovskites. We studied temperature-graded (BaxSr1-x )TiO3 (BST) bulk alloys as well as the dynamics of nanodomain walls (nanowalls) in Pb(ZrxTi1-x )O3 (PZT) ultra-thin films under the driving force of an AC field. Our computations suggest that, for the temperature-graded BST, the polarization responds to the temperature gradient (TG), with the "up" and "down" offset observed in polarization components along the direction of TG, in agreement with the findings from experiments. For the nanowalls in PZT, the dynamics can be described by the damped-harmonic-oscillator model, and we observed a size-driven transition from resonance to relaxational dynamics at a critical thickness of 7.2 nm. The transition originates from the change in the effective mass of a nanowall as a film thickness increases. Some of the findings may find potential applications in various devices, such as thermal sensors, energy converters, or novel memory units.
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Sakamoto, Wataru, Asaki Iwata, and Toshinobu Yogo. "Ferroelectric properties of chemically synthesized perovskite BiFeO_3–PbTiO_3 thin films." American Institite of Physics, 2008. http://hdl.handle.net/2237/11988.

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Randall, C. A. "A transmission electron microscopy study of normal and relaxor perovskite ferroelectric materials." Thesis, University of Essex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376749.

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Chen, Chen. "Synthesis, structural and ferroelectric properties of perovskite-like layered structured materials." Thesis, Queen Mary, University of London, 2015. http://qmro.qmul.ac.uk/xmlui/handle/123456789/9526.

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Perovskite-like layered structured (PLS) compounds display a range of interesting physical and chemical properties, including photocatalysis, photoluminescence, ion conductivity, electrochemical stability, magnetic properties, ferroelectricity and piezoelectricity. There are mainly three homologous series of PLS compounds distinguished by their different BO6 octahedra orientation: the Dion-Jacobson phase (A'An-1BnO3n+1); the AnBnO3n+2 phase; and the hexagonal phase (AnBn-1O3n). Some of the 4-layer AnBnO3n+2 compounds, like La2Ti2O7 and Sr2Nb2O7, have been reported to be ferroelectrics with super high Curie point (above 1300 °C), but no ferroelectric properties have been reported for the 2-layer and 3-layer AnBnO3n+2 compounds, and also there are few reports on the ferroelectric properties of compounds with Dion-Jacobson structure and hexagonal structure. Consequently, in this work, the crystallographic structures, microstructures, dielectric, ferroelectric and piezoelectric properties of (AxLa1-x)Ti2O7 (A = Sm and Eu) solid solutions with 4-layer AnBnO3n+2 structure, Pr3Ti2TaO11 with 3-layer AnBnO3n+2 structure, LaTaO4 with 2-layer AnBnO3n+2 structure, ABiNb2O7 (A = Rb and Cs) with Dion-Jacobson structure and Sr6TiNb4O18 with hexagonal structure were studied. Spark plasma sintering (SPS) was used to sinter ceramics with high density and preferred orientation. X-ray diffraction refinement (XRD) and transmission electron microscopy (TEM) were used to study the crystallographic structures and microstructures of the layer structured compounds. The ferroelectricity was studied using the current-electric field and polarization-electric field hysteresis loops. The Curie point and phase transitions were studied using the temperature dependence of the dielectric constant and loss. Piezoresponse force microscopy (PFM) was also used to study the ferroelectric domain structure of some layer structured compounds. In the first part of this work, the piezoelectric constant of La2Ti2O7 was improved by doping Sm. The crystallographic structure of (Eu1-xLax) 2Ti2O7 and (Sm1-xLax) 2Ti2O7 solid solutions were well studied. (AxLa1-x)Ti2O7 solid solutions were isomorphous with La2Ti2O7 when x was less than 0.5 for (EuxLa1-x)Ti2O7 and 0.8 for (SmxLa1-x)Ti2O7. When x was above their solubility limit, a biphase was observed. The XRD and Raman data suggested that the biphase consisted of (AxLa1-x)2Ti2O7 perovskite-like layered structure and pure Sm2Ti2O7 pyrochlore structure. Ferroelectric domain switching was observed in the I-E and P-E hysteresis loops for textured (SmxLa1-x)Ti2O7 (x < 0.2). The highest d33 was 2.8 pC/N for (Sm0.1La0.9)Ti2O7. In the second part, The Pr3Ti2TaO11 compound was demonstrated to have a 3-layer type II AnBnO3n+2 PLS structure belonging to space group Pmc21 with unit cell parameters a = 3.8689(3) Å, b = 20.389(2) Å, c = 5.5046(5) Å, and its ferroelectric properties were investigated. Analysis of the XRD and TEM results showed that Pr3Ti2TaO11 ceramics have an n = 3 (type II) heteroblock structure consisting of alternating n = 2 and n = 4 octahedral oxide layers. High resolution electron microscopy revealed the layered structure to be highly disordered, with faulting of the heteroblock structure and the coexistence of a n = 4 phase on a fine scale (nm), which was evident as a broadening of the XRD peaks of the ceramics. Pr3Ti2TaO11 ceramic exhibits a super-high Curie point (1415±5 °C). A small, but measurable piezoelectric constant d33 between 0.1 and 0.2 pC/N was detected for the samples poled above 900 °C under an electric field of 100~200 V/cm. Pure LaTaO4 powders with orthorhombic phase were be prepared by co-precipitation method. The orthorhombic LaTaO4 powders have a 2-layer perovskite-like layered structure with space group A21am, which was refined using Rietveld method. The single phase O-LaTaO4 ceramic was prepared using SPS with a slow cooling rate (20 °C/min). A d33 of 0.3 pC/N was obtained from the electric field induced orthorhombic phase. In the second part of this work, the ferroelectricity and piezoelectricity of CsBiNb2O7 with Dion-Jacobson type PLS structure was successfully demonstrated for the first time. The ferroelectricity and piezoelectricity of RbBiNb2O7, which have similar structure with CsBiNb2O7, were also fully studied. Highly textured 2-layer Dion-Jacobson ceramics ABiNb2O7 (A = Rb and Cs) were prepared by one-step SPS. High resolution TEM showed well ordered (0 0 1) lattice planes. Striped ferroelectric domains were observed using PFM. The ferroelectricity and piezoelectricity of CsBiNb2O7 has been demonstrated for the first time. The Tc of RbBiNb2O7 and CsBiNb2O7 are 1098±5 and 1033±5 °C, respectively. The piezoelectric constant of RbBiNb2O7 and CsBiNb2O7 were approximately 5 and 8 pC/N. Thermal depoling studies confirmed the Curie point and the stability of the piezoelectricity. Sr6Nb4TiO18 ceramics with non-centrosymmetric structure were successfully prepared, but no obvious evidence was found to prove its ferroelectricity. The untextured and textured 6-layer Hexagonal compound Sr6Nb4TiO18 was prepared by solid state reaction and spark plasma sintering. Its Curie point was found to be greater than 1500 °C. No ferroelectric properties were observed by studying of I-E and P-E loops, and no d33 was observed after poling.
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Hettiarachchi, Chaminda Lakmal. "Organometal Halide Perovskite Solar Absorbers and Ferroelectric Nanocomposites for Harvesting Solar Energy." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/7034.

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Organometal halide perovskite absorbers such as methylammonium lead iodide chloride (CH3NH3PbI3-xClx), have emerged as an exciting new material family for photovoltaics due to its appealing features that include suitable direct bandgap with intense light absorbance, band gap tunability, ultra-fast charge carrier generation, slow electron-hole recombination rates, long electron and hole diffusion lengths, microsecond-long balanced carrier mobilities, and ambipolarity. The standard method of preparing CH3NH3PbI3-xClx perovskite precursors is a tedious process involving multiple synthesis steps and, the chemicals being used (hydroiodic acid and methylamine) are quite expensive. This work describes a novel, single-step, simple, and cost-effective solution approach to prepare CH3NH3PbI3-xClx thin films by the direct reaction of the commercially available CH3NH3Cl (or MACl) and PbI2. A detailed analysis of the structural and optical properties of CH3NH3PbI3-xClx thin films deposited by aerosol assisted chemical vapor deposition is presented. Optimum growth conditions have been identified. It is shown that the deposited thin films are highly crystalline with intense optical absorbance. Charge carrier separation of these thin films can be enhanced by establishing a local internal electric field that can reduce electron-hole recombination resulting in increased photo current. The intrinsic ferroelectricity in nanoparticles of Barium Titanate (BaTiO3 -BTO) embedded in the solar absorber can generate such an internal field. A hybrid structure of CH3NH3PbI3-xClx perovskite and ferroelectric BTO nanocomposite FTO/TiO2/CH3NH3PbI3-xClx: BTO/P3HT/Cu as a new type of photovoltaic device is investigated. Aerosol assisted chemical vapor deposition process that is scalable to large-scale manufacturing was used for the growth of the multilayer structure. TiO2 and P3HT with additives were used as ETL and HTL respectively. The growth process of the solar absorber layer includes the nebulization of a mixture of PbI2 and CH3NH3Cl perovskite precursors and BTO nanoparticles dissolved in DMF, and injection of the aerosol into the growth chamber and subsequent deposition on TiO2. While high percentage of BTO in the film increases the carrier separation, it also leads to reduced carrier generation. A model was developed to guide the optimum BTO nanoparticle concentration in the nanocomposite films. Characterization of perovskite solar cells indicated that ferroelectric polarization of BTO nanoparticles leads to the increase of the width of depletion regions in the perovskite layer hence the photo current was increased by one order of magnitude after poling the devices. The ferroelectric polarization of BTO nanoparticles within the perovskite solar absorber provides a new perspective for tailoring the working mechanism and photovoltaic performance of perovskite solar cells.
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Bing, Yonghong. "Synthesis, structure and properties of high piezo-and ferroelectric complex perovskite systems /." Burnaby B.C. : Simon Fraser University, 2005. http://ir.lib.sfu.ca/handle/1892/2032.

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Dhuvad, Pratikkumar. "FIRST-PRINCIPLES STUDIES OF FERROELECTRIC PROPERTIES IN ORGANIC CRYSTAL AND PEROVSKITE SUPERLATTICES." Diss., Temple University Libraries, 2018. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/524696.

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Physics
Ph.D.
This thesis discusses structural and ferroelectric properties of two well-known classes of materials, perovskite oxides and Hydrogen bonded ferroelectrics, using first-principles calculations. Certain aspects of first principles calculations are central to the problems presented in this thesis. Such as the ability to calculate polarization based on the modern theory of polarization and calculation of ferroelectric property under finite electric displacement field. Therefore, these fundamental theoretical approaches are discussed following an opening section on the basic methodology of density-functional theory. In addition to the discussion on theoretical methods, a brief review of different phenomena and techniques crucial to alter/enhance ferroelectric properties at the interfaces of perovskite materials has been presented along with examples. The first problem presented in this thesis proposes and validates an alternative quantitative measure of ferroelectric(FE) and antiferrodistortive(AFD) instabilities by means of calculating inverse capacitance and layer inverse capacitance of layered perovskites. The presented methodological approach is applied to BaTiO$_{3}$/CaTiO$_{3}$ and PbTiO$_{3}$/SrTiO$_{3}$ superlattices and it precisely estimates FE and AFD instabilities. Here we also present an approach to accurately predict the ferroelectric instabilities in large period superlattices from the statistical coefficients obtained from short period superlattices. In the second problem, we study ferroelectricity in an organic crystal(croconic acid) for which ferroelectric polarization is close to that of bulk BaTiO$_{3}$. We employ new meta-GGA functional named SCAN and revisit all structural and ferroelectric properties. Calculated X-ray absorption spectra(XAS) qualitatively and quantitatively agrees well with experimental O K-edge spectra. By discussing the origin of each XAS peak and their characteristic we demonstrate with a systematic approach the connection between ferroelectricity and XAS in croconic acid. Best to our knowledge such relation has not been realized in past. This study could prove XAS as a new way to measure ferroelectric instability in hydrogen-bonded organic ferroelectrics.
Temple University--Theses
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Books on the topic "Ferroelectric perovskite"

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Peter, Frank. Piezoresponse force microscopy and surface effects of perovskite ferroelectric nanostructures. Jülich: Forschungszentrum Jülich GmbH, Zentralbibliothek, 2006.

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Gunnar, Borstel, Krūmin̳š A, Millers Donats, and NATO Advanced Research Workshop on Defects and Surface-Induced Effects in Advanced Perovskites (1999 : Jūrmala, Latvia), eds. Defects and surface-induced effects in advanced perovskites. Dordrecht: Kluwer Academic Publishers, 2000.

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Onishi, Taku. Ferroelectric Perovskites for High-Speed Memory. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2669-3.

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Williamsburg Workshop on First Principles Calculations for Ferroelectrics (5th 1998 Williamsburg, Virginia). First-principles calculations for ferroelectrics: [proceedings of the] Fifth Williamsburg Workshop : Williamsburg, VA, February 1998. Edited by Cohen Ronald Elliott. Woodbury, New York: AIP, 1998.

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(Editor), Gunnar Borstel, Andris Krumins (Editor), and Donats Millers (Editor), eds. Defects and Surface-Induced Effects in Advanced Perovskites (NATO SCIENCE PARTNERSHIP SUB-SERIES: 3: High Technology Volume 77). Springer, 2000.

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(Editor), Gunnar Borstel, Andris Krumins (Editor), and Donats Millers (Editor), eds. Defects and Surface-Induced Effects in Advanced Perovskites (NATO Science Partnership Sub-Series: 3:). Springer, 2000.

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From Quantum Paraelectric/Ferroelectric Perovskite Oxides to High Temperature Superconducting Copper Oxides -- In Honor of Professor K.A. Müller for His Lifework. MDPI, 2021. http://dx.doi.org/10.3390/books978-3-0365-0475-9.

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Onishi, Taku. Ferroelectric Perovskites for High-Speed Memory: A Mechanism Revealed by Quantum Bonding Motion. Springer, 2022.

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Book chapters on the topic "Ferroelectric perovskite"

1

Onishi, Taku. "New Ferroelectric Perovskite—Materials Design." In Ferroelectric Perovskites for High-Speed Memory, 177–98. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2669-3_13.

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Tyunina, Marina. "Ferroelectric Phase Transitions in Epitaxial Perovskite Films." In Nanoscale Ferroelectrics and Multiferroics, 617–44. Chichester, UK: John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781118935743.ch19.

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Onishi, Taku. "Quantum Bonding Motion in Ferroelectric PbTiO3 Perovskite." In Ferroelectric Perovskites for High-Speed Memory, 161–76. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2669-3_12.

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Onishi, Taku. "Quantum Bonding Motion in Ferroelectric BaTiO3 Perovskite." In Ferroelectric Perovskites for High-Speed Memory, 145–60. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2669-3_11.

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Scott, James F. "Layered Perovskite Thin Films and Memory Devices." In Thin Film Ferroelectric Materials and Devices, 115–44. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-6185-9_5.

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Roelofs, A., K. Szot, and R. Waser. "Domain Switching and Self- Polarization in Perovskite Thin Films." In Nanoscale Phenomena in Ferroelectric Thin Films, 135–55. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4419-9044-0_6.

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Alberta, Edward F., Ruyan Guo, and Amar S. Bhalla. "The Morphotropic Phase Boundary in Perovskite Ferroelectric Relaxor Systems." In Ceramic Transactions Series, 55–64. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118380802.ch4.

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Waser, R. "Polarization, Conduction, and Breakdown in Non-Ferroelectric Perovskite Thin Films." In Science and Technology of Electroceramic Thin Films, 223–48. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-017-2950-5_16.

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Chen, Yi, De Jun Lan, Qiang Chen, Ding Quan Xiao, Xi Yue, and Jian Guo Zhu. "Stability of the Perovskite Structure in BSPT-Based Ferroelectric Ceramics." In Key Engineering Materials, 231–34. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-410-3.231.

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Saitzek, Sébastien, ZhenMian Shao, Alexandre Bayart, Pascal Roussel, and Rachel Desfeux. "Microstructure and Nanoscale Piezoelectric/Ferroelectric Properties in Ln2Ti2O7(Ln= Lanthanide) Thin Films with Layered Perovskite Structure." In Perovskites and Related Mixed Oxides, 233–58. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2015. http://dx.doi.org/10.1002/9783527686605.ch11.

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Conference papers on the topic "Ferroelectric perovskite"

1

Dougherty, Thomas P., Gary P. Wiederrecht, Lisa Dhar, and Keith A. Nelson. "Polarization dynamics in ferroelectric perovskite crystals." In OE/LASE'93: Optics, Electro-Optics, & Laser Applications in Science& Engineering, edited by Timothy R. Gosnell, Antoinette J. Taylor, Keith A. Nelson, and Michael C. Downer. SPIE, 1993. http://dx.doi.org/10.1117/12.147058.

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Röhm, Holger, Tobias Leonhard, Alexander D. Schulz, Susanne Wagner, Michael J. Hoffmann, and Alexander Colsmann. "Ferroelectric poling of methylammonium lead iodide thin films." In Organic, Hybrid, and Perovskite Photovoltaics XXI, edited by Kwanghee Lee, Zakya H. Kafafi, Paul A. Lane, Harald W. Ade, and Yueh-Lin (Lynn) Loo. SPIE, 2020. http://dx.doi.org/10.1117/12.2568891.

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Gehring, P. M. "Ferroelectric Dynamics in the Perovskite Relaxor PMN." In FUNDAMENTAL PHYSICS OF FERROELECTRICS 2002. AIP, 2002. http://dx.doi.org/10.1063/1.1499556.

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WATANABE, Yukio, Mitsuru TANAMURA, and Yasuaki MATSUMOTO. "All-Perovskite Ferroelectric/Semiconductor Field Effect Transistor." In 1995 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 1995. http://dx.doi.org/10.7567/ssdm.1995.pc-2-5.

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Gentilini, Desiree, Daniele Rossi, Matthias Auf der Maur, Aldo Di Carlo, and Alessandro Pecchia. "Effect of ferroelectric nanodomains in perovskite solar cells." In 2015 IEEE 15th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2015. http://dx.doi.org/10.1109/nano.2015.7388894.

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Ganeshkumar, Rajasekaran, and Zhao Rong. "Factors Influencing Ferroelectric Switching Behavior in Perovskite Nanofibers." In 2019 IEEE 19th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2019. http://dx.doi.org/10.1109/nano46743.2019.8993942.

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Tan, X., D. White, and X. Zhao. "Cation and dipole order in ferroelectric perovskite oxides." In 2008 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF). IEEE, 2008. http://dx.doi.org/10.1109/isaf.2008.4693930.

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SOBOLEV, V. L., and V. M. ISHCHUK. "PHASE TRANSITION BETWEEN FERROELECTRIC AND ANTIFERROELECTRIC STATES AND TWO-PHASE NUCLEATION IN PEROVSKITE FERROELECTRICS." In Proceedings of the 8th Asia-Pacific Physics Conference. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812811523_0076.

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Röhm, Holger, Tobias Leonhard, Michael J. Hoffmann, and Alexander Colsmann. "Ferroelectric domains in methylammonium lead iodide perovskite solar cells." In nanoGe Fall Meeting 2018. València: Fundació Scito, 2018. http://dx.doi.org/10.29363/nanoge.fallmeeting.2018.167.

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Röhm, Holger, Tobias Leonhard, Michael J. Hoffmann, and Alexander Colsmann. "Ferroelectric domains in methylammonium lead iodide perovskite solar cells." In nanoGe Fall Meeting 2018. València: Fundació Scito, 2018. http://dx.doi.org/10.29363/nanoge.nfm.2018.167.

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Reports on the topic "Ferroelectric perovskite"

1

Rappe, Andrew. Exploiting the flexibility and the polarization of ferroelectric perovskite surfaces to achieve efficient photochemistry and enantiospecificity. Office of Scientific and Technical Information (OSTI), January 2017. http://dx.doi.org/10.2172/1338245.

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Vanderbilt, David. Structural Properties of Ferroelectric Perovskites. Fort Belvoir, VA: Defense Technical Information Center, February 1998. http://dx.doi.org/10.21236/ada337843.

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Zhu, Xiaoyang. FERROELECTRIC LARGE POLARONS AND DEFECT TOLERANCE IN MULTI-COMPONENT LEAD HALIDE PEROVSKITES. Office of Scientific and Technical Information (OSTI), April 2021. http://dx.doi.org/10.2172/1912091.

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Guo, Hanzheng. In situ transmission electron microscopy study of the microstructural origins for the electric field-induced phenomena in ferroelectric perovskites. Office of Scientific and Technical Information (OSTI), December 2014. http://dx.doi.org/10.2172/1342570.

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