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Artykuły w czasopismach na temat "Magneto-dielectric Properties"
Yang, Ta-I., Rene N. C. Brown, Leo C. Kempel i Peter Kofinas. "Magneto-dielectric properties of polymer– nanocomposites". Journal of Magnetism and Magnetic Materials 320, nr 21 (listopad 2008): 2714–20. http://dx.doi.org/10.1016/j.jmmm.2008.06.008.
Pełny tekst źródłaSharma, Indu, Shruti Mahajan, Vishal Arora, Mehak Arora, Nitin Mahajan, Kanika Aggarwal i Anupinder Singh. "Effect of Magnetic field on dielectric properties in PLT/BNCFO composites". Emerging Materials Research 12, nr 2 (1.06.2023): 1–11. http://dx.doi.org/10.1680/jemmr.22.00183.
Pełny tekst źródłaHalder, Monalisa, Jinia Datta, Raja Mallick, Ranjita Sinha, Khusi Smriti, Chandan Kumar Raul, Shubhadip Atta i Ajit Kumar Meikap. "Observation of Electrical, Dielectric and Magneto-dielectric Properties of Terbium Doped Bismuth Ferrite Nanoparticles above Room Temperature". International Journal of Innovative Research in Physics 3, nr 4 (4.07.2022): 20–24. http://dx.doi.org/10.15864/ijiip.3403.
Pełny tekst źródłaSingh, Gulab, H. P. Bhasker, R. P. Yadav, Aditya Kumar, Bushra Khan, Ashok Kumar i Manoj K. Singh. "Magneto-dielectric and multiferroic properties in Bi0.95Yb0.05Fe0.95Co0.05O3". Physica Scripta 94, nr 6 (2.04.2019): 065802. http://dx.doi.org/10.1088/1402-4896/ab03a5.
Pełny tekst źródłaZuo, Xuzhong, Maolian Zhang, Enjie He, Peng Zhang, Jie Yang, Xuebin Zhu i Jianming Dai. "Magnetic, dielectric, and magneto-dielectric properties of Aurivillius Bi7Fe2CrTi3O21 ceramic". Ceramics International 44, nr 5 (kwiecień 2018): 5319–26. http://dx.doi.org/10.1016/j.ceramint.2017.12.150.
Pełny tekst źródłaBhoi, Krishnamayee, Dhiren K. Pradhan, K. Chandrakanta, Narendra Babu Simhachalam, A. K. Singh, P. N. Vishwakarma, A. Kumar, Philip D. Rack i Dillip K. Pradhan. "Investigations of room temperature multiferroic and magneto-electric properties of (1-Φ) PZTFT-Φ CZFMO particulate composites". Journal of Applied Physics 133, nr 2 (14.01.2023): 024101. http://dx.doi.org/10.1063/5.0120665.
Pełny tekst źródłaChan, Kheng Chuan, Xiao Tian Liew, Ling Bing Kong, Zheng Wen Li i Guo Qing Lin. "Ni1−xCoxFe1.98O4Ferrite Ceramics with Promising Magneto-Dielectric Properties". Journal of the American Ceramic Society 91, nr 12 (grudzień 2008): 3937–42. http://dx.doi.org/10.1111/j.1551-2916.2008.02777.x.
Pełny tekst źródłaAkhtar, Abu Jahid, Abhisek Gupta i Shyamal K. Saha. "Trap induced tunable unusual dielectric properties in transition metal doped reduced graphene oxide". RSC Advances 5, nr 13 (2015): 9594–99. http://dx.doi.org/10.1039/c4ra13387k.
Pełny tekst źródłaHasan, Zaid A. "Effect Magneto – Optic on Ferromagnetic Nanoparticle Polymer Composite Films". NeuroQuantology 19, nr 6 (14.07.2021): 25–29. http://dx.doi.org/10.14704/nq.2021.19.6.nq21063.
Pełny tekst źródłaRather, Gowher Hameed, Mehraj ud Din Rather, Nazima Nazir, Afreen Ikram, Mohd Ikram i Basharat Want. "Particulate multiferroic Ba0.99Tb0.02Ti0.99O3 – CoFe1.8Mn0.2O4 composites: Improved dielectric, ferroelectric and magneto-dielectric properties". Journal of Alloys and Compounds 887 (grudzień 2021): 161446. http://dx.doi.org/10.1016/j.jallcom.2021.161446.
Pełny tekst źródłaRozprawy doktorskie na temat "Magneto-dielectric Properties"
Golt, Michael C. "Magnetic and dielectric properties of magneto-dielectric materials consisting of oriented, iron flake filler within a thermoplastic host". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 150 p, 2008. http://proquest.umi.com/pqdweb?did=1597633721&sid=13&Fmt=2&clientId=8331&RQT=309&VName=PQD.
Pełny tekst źródłaKim, Sunho Ph D. Massachusetts Institute of Technology. "Defect and electrical properties of high-K̳ dielectric Gd₂O₃ for magneto-ionic and memristive memory devices". Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/129007.
Pełny tekst źródłaCataloged from student-submitted PDF of thesis. The "K̳̳" in title on title page appeared as subscript "K."
Includes bibliographical references (pages 127-134).
While high-[subscript K] dielectrics utilized in CMOS technology are noted for their highly insulating characteristics, they have demonstrated surprising electrolytic behavior as key components in a variety of thin film memory devices, including those based on magneto-ionic and memristive behavior. In this work, we focus on the rare earth sesquioxide, Gd₂O₃, a well-known high-κ dielectric that has exhibited a variety of electrolytic properties during the development and operation of the first magneto-ionic devices developed at MIT. Specifically, we focused our investigation on the defect chemistry and electrical properties of Gd₂O₃ in order to better understand the relationship between the structure, chemistry, processing conditions, and operating environment and the material's low-temperature ionic and electronic transport properties and the means for their optimization vis-à-vis memory device operation.
Phase (monoclinic and cubic) and dopant controlled (Ca, Ce, Sr, Zr) polycrystalline pellets of 8 different Gd₂O₃ systems were prepared to investigate various defect regimes in consideration of this material's polymorphism. We considered intrinsic anion-Frenkel disorder and electronic disorder, equilibration with the gas phase, water incorporation, and dopant incorporation in the defect modeling, taking into account the roles of crystallographic structure as well as oxygen ion defect and protonic generation. The primary method utilized to characterize the defect chemistry and transport properties of Gd₂O₃ was the analysis of the dopant, p0₂ and temperature dependencies of the electrical conductivity extracted from complex impedance spectra obtained over the p0₂ range of 1 to 10⁻¹⁵ atm, for 5 isotherms between 700 and 900 °C with 50 °C steps and for a range of acceptor and donor dopants.
Based on the p0₂ dependency of conductivities, in light of the defect modeling, the majority point defects in each system were identified. Electronic and ionic migration energies and thermodynamic parameters were extracted via the defect modeling and temperature dependencies of conductivities. In nearly all cases, the predominant charge carrier under oxidizing conditions at elevated temperatures was identified as the p-type electron-hole, largely due to oxygen excess non-stoichiometry in these systems. With decreasing p0₂, transport tended to switch from semiconducting towards ionic. Depending on phase, dopant type & concentration, temperature, and relative humidity, the predominant ionic conductivity was found to be via oxygen interstitials, oxygen vacancies, and/or protons, the latter given by the propensity of Gd₂O₃ to take up water in solid solution from the environment by the formation of OH[superscript .]species.
Unexpectedly, the ionic mobilities of defects in the denser and less symmetric monoclinic system exhibited higher ionic mobilities than the more open bixbyite structure. The hole electronic species in the investigated systems were found to migrate via the small polaron hopping mechanism with rather large hopping energies. This resulted in an inversion of hole and proton mobility magnitudes at reduced temperatures in the monoclinic system. Extrapolation of ionic and electronic defect conductivities to near room temperature, based on our derived defect and transport models, was not able to explain, on its own, the observed electrolytic properties of the Gd₂O₃ thin films utilized in magneto-ionic devices.
In an attempt to connect the transport properties obtained under equilibrium conditions at elevated temperatures with the behavior of Gd₂O₃ near room temperature, selected thin films Gd₂O₃, prepared by pulsed laser deposition or sputtering, were investigated by complex impedance spectroscopy over the temperature range of 20 - 170°C. While films prepared under dry conditions were indeed found to be highly electrically insulating, films exposed to water vapor exhibited dramatically higher proton conductivities (more than ~10⁸ x) than values extrapolated from high temperature. Parallel thermogravimetric analysis on Gd₂O₃ powder specimens, as a function of temperature, under high humidity conditions, demonstrated a correlation between uptake/loss of incorporated water and conductivity upon cooling and heating, respectively.
We can therefore conclude that the large disconnect between the electrical and electrolytic properties observed between high-κ dielectrics used in CMOS devices such as Gd₂O₃, and their much more highly conductive counterparts used in thin film memory devices, depends strategically on the thin film processing conditions. High-κ dielectrics are fabricated in carefully controlled environments with low relative humidity, while research on, for example, Gd₂O₃ - based magneto-ionic memory devices, is performed under ambient laboratory conditions, where significant water uptake becomes possible at surfaces and grain boundaries. The results and insights obtained in this study can be expected to be applied in achieving further progress in the understanding and optimization of magneto-ionic, memristive, and other devices that rely on proton gating.
by Sunho Kim.
Ph. D.
Ph.D. Massachusetts Institute of Technology, Department of Materials Science and Engineering
Rocha, HÃlio Henrique Barbosa. "Estudo das propriedades estruturais e de transporte dos compÃsitos magneto-dielÃtricos [(Fe5/8Cr3/8)2O3]x-[(Fe1/4Cu3/8Ti3/8)2O3]100âx". Universidade Federal do CearÃ, 2006. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=7065.
Pełny tekst źródłaPachari, Sreenivasulu. "Structure, Microstructure and Magneto-Dielectric Properties of Barium Titanate-Ferrite Based Composites". Thesis, 2015. http://ethesis.nitrkl.ac.in/6877/1/613CR3001_SPACHARI_2015.pdf.
Pełny tekst źródłaCzęści książek na temat "Magneto-dielectric Properties"
Yokota, Takeshi, Takaaki Kuribayashi, Takeshi Shundo, Keita Hattori, Yasutoshi Sakakibara i Manabu Gomi. "Magnetic and Dielectric Properties of a Metal/ Cr2O3/Cr2O3-x/Cr2O3/Semiconductor Capacitor Using Magneto-Electric Materials". W Electroceramics in Japan X, 221–24. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-449-9.221.
Pełny tekst źródła"Electrical Properties of Magneto-Dielectric Films". W Magnetics, Dielectrics, and Wave Propagation with MATLAB Codes, 247–88. CRC Press, 2010. http://dx.doi.org/10.1201/b17374-11.
Pełny tekst źródłaKumar, H. "Effect of Substitution on the Dielectric and Magnetic Properties of BaFe12O19". W Materials Research Foundations, 66–92. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902318-3.
Pełny tekst źródłaStreszczenia konferencji na temat "Magneto-dielectric Properties"
Bhoi, Krishnamayee, Md F. Abdullah, A. K. Singh, P. N. Vishwakarma i Dillip K. Pradhan. "Room temperature magneto-dielectric properties of PFN-CZFMO composite". W DAE SOLID STATE PHYSICS SYMPOSIUM 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0017473.
Pełny tekst źródłaArya, Ekta, Ashish Agarwal, Rakesh Dhar, Anand Kumari i Vibha Meenal. "Structural, dielectric and magnetic properties of BaFe12O19-Na0.5Bi0.5TiO3 magneto-electric composites". W DAE SOLID STATE PHYSICS SYMPOSIUM 2018. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5113320.
Pełny tekst źródłaWu, Xu, Zongliang Zheng i Quanyuan Feng. "Investigations on the Microwave-Absorbing Properties of NiZnCo Magneto-Dielectric Ferrites". W 2019 International Applied Computational Electromagnetics Society Symposium - China (ACES). IEEE, 2019. http://dx.doi.org/10.23919/aces48530.2019.9060605.
Pełny tekst źródłaGeryak, R. D., i J. W. Schultz. "Extraction of Magneto-Dielectric Properties from Metal-Backed Free-Space Reflectivity". W 2019 Antenna Measurement Techniques Association Symposium (AMTA). IEEE, 2019. http://dx.doi.org/10.23919/amtap.2019.8906370.
Pełny tekst źródłaBreinbjerg, O. "Properties of Floquet-Bloch space harmonics in 1D periodic magneto-dielectric structures". W 2012 International Conference on Electromagnetics in Advanced Applications (ICEAA). IEEE, 2012. http://dx.doi.org/10.1109/iceaa.2012.6328799.
Pełny tekst źródłaRobinson, C. J., R. N. Payne i A. E. Bell. "Amorphous Carbon Dielectric Coatings for Magneto-Optic Recording Media". W Optical Data Storage. Washington, D.C.: Optica Publishing Group, 1987. http://dx.doi.org/10.1364/ods.1987.thc4.
Pełny tekst źródłaJain, Prince, Shonak Bansal, Naveen Kumar, Sanjeev Kumar, Neena Gupta i Arun K. Singh. "Magneto-dielectric properties of composite ferrite based substrate for UHF band microstrip antenna". W 2017 Progress In Electromagnetics Research Symposium - Spring (PIERS). IEEE, 2017. http://dx.doi.org/10.1109/piers.2017.8261886.
Pełny tekst źródłaBorah, S., i N. S. Bhattacharyya. "GCPWG technique for measurement of dielectric properties of magneto-polymer composite at microwave frequencies". W 2009 Applied Electromagnetics Conference (AEMC 2009). IEEE, 2009. http://dx.doi.org/10.1109/aemc.2009.5430594.
Pełny tekst źródłaArce-Diego, Jose L., David Pereda Cubian i Luis M. Villaverde-Castanedo. "Temperature dependence of the multilayer films properties composed of magneto-optical and dielectric materials". W Photonics, Devices, and Systems II, redaktorzy Miroslav Hrabovsky, Dagmar Senderakova i Pavel Tomanek. SPIE, 2003. http://dx.doi.org/10.1117/12.498452.
Pełny tekst źródłaSahoo, Sushrisangita, P. K. Mahapatra i R. N. P. Choudhary. "Effect of sintering temperature on dielectric, electrical and magneto-electric properties of (Ba0.8Gd0.2)(Ti0.8Fe0.2) O3". W DAE SOLID STATE PHYSICS SYMPOSIUM 2016. Author(s), 2017. http://dx.doi.org/10.1063/1.4980181.
Pełny tekst źródłaRaporty organizacyjne na temat "Magneto-dielectric Properties"
Rajca, Andrzej. Organic Polymers with Magneto-Dielectric Properties. Fort Belvoir, VA: Defense Technical Information Center, marzec 2007. http://dx.doi.org/10.21236/ada467781.
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