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Статті в журналах з теми "Doped Perovskite Manganites"
De Sousa, P., N. Panwar, I. Bdikin, A. L. Kholkin, C. M. Fernandes, and A. M. R. Senos. "Effect of the Grain Size on the Magnetic Phase Separation in La0.8Sr0.2MnO3 by Magnetic Force Microscopy." Microscopy and Microanalysis 18, S5 (August 2012): 101–2. http://dx.doi.org/10.1017/s1431927612013165.
Повний текст джерелаMODI, ANCHIT, RAJESH THAKUR, RASNA THAKUR, N. K. GAUR, N. KAURAV, and G. S. OKRAM. "STRUCTURAL PROPERTIES OF CHROMIUM DOPED GADOLINIUM MANGANITES." International Journal of Modern Physics: Conference Series 22 (January 2013): 511–16. http://dx.doi.org/10.1142/s2010194513010593.
Повний текст джерелаRizzuti, Anotnio, Massimo Viviani, Anna Corradi, Paolo Nanni, and Cristina Leonelli. "Microwave-Assisted Hydrothermal Synthesis as a Rapid Route Towards Manganite Preparation." Solid State Phenomena 128 (October 2007): 21–24. http://dx.doi.org/10.4028/www.scientific.net/ssp.128.21.
Повний текст джерелаChik, A., S. Saad, R. M. Zaki, F. Che Pa, and C. K. Yeoh. "Ab Initio Calculations of Electronic Properties of Al Doped LaMnO3 Perovskite Manganites." Applied Mechanics and Materials 754-755 (April 2015): 762–65. http://dx.doi.org/10.4028/www.scientific.net/amm.754-755.762.
Повний текст джерелаRizzuti, Antonino, and Cristina Leonelli. "Microwave advantages in inorganic synthesis of La0.5 Sr0.5MnO3 powders for perovskite ceramics." Processing and Application of Ceramics 3, no. 1-2 (2009): 29–32. http://dx.doi.org/10.2298/pac0902029r.
Повний текст джерелаMoritomo, Y., T. Akimoto, A. Nakamura, K. Ohoyama, and M. Ohashi. "Antiferromagnetic metallic state in the heavily doped region of perovskite manganites." Physical Review B 58, no. 9 (September 1, 1998): 5544–49. http://dx.doi.org/10.1103/physrevb.58.5544.
Повний текст джерелаAutret, C., C. Martin, M. Hervieu, A. Maignan, B. Raveau, G. André, F. Bourée, and Z. Jirak. "From A-type antiferromagnetism to ferromagnetism in half-doped perovskite manganites." Journal of Magnetism and Magnetic Materials 270, no. 1-2 (March 2004): 194–202. http://dx.doi.org/10.1016/j.jmmm.2003.08.018.
Повний текст джерелаTroyanchuk, I. O., L. S. Lobanovsky, D. D. Khalyavin, S. N. Pastushonok, and H. Szymczak. "Magnetic and magnetotransport properties of Co-doped manganites with perovskite structure." Journal of Magnetism and Magnetic Materials 210, no. 1-3 (February 2000): 63–72. http://dx.doi.org/10.1016/s0304-8853(99)00620-4.
Повний текст джерелаMaignan, A., C. Martin, M. Hervieu, B. Raveau, and J. Hejtmanek. "Probing the underlying charge ordering: Ruthenium-doped Sm1−xSrxMnO3 perovskite manganites." Journal of Applied Physics 89, no. 4 (February 15, 2001): 2232–36. http://dx.doi.org/10.1063/1.1342188.
Повний текст джерелаLiu, Shao-Peng, Yan Xie, Juan Xie та Gui-De Tang. "Structural and magnetic properties of self-doped perovskite manganites La0.8-xSr0.2MnO3−δ". Journal of Applied Physics 110, № 12 (15 грудня 2011): 123714. http://dx.doi.org/10.1063/1.3671635.
Повний текст джерелаДисертації з теми "Doped Perovskite Manganites"
Wu, Zhenping, and 吴真平. "Studies on thin films and heterojunctions of electron/hole-doped perovskite manganites." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B49799307.
Повний текст джерелаpublished_or_final_version
Physics
Doctoral
Doctor of Philosophy
Pohl, Annika. "Sol−Gel Synthesis of CMR Manganites." Doctoral thesis, Uppsala University, Department of Materials Chemistry, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3970.
Повний текст джерелаThe development of more advanced materials forms the basis of technological progress. One group of fascinating compounds with many potential applications in spintronic devices are the mixed-valence perovskite manganites. These have attracted considerable interest during the last decade through their very large magnetoresistance near the Curie Temperature. Although the properties of a material determinie any application, the development of reliable and flexible synthesis methods is crucial, as is the understanding of these methods. Knowledge of how different materials are formed is also of general importance in tailoring new materials. The aim of this project has therefore been not only to develop a new synthesis route, but also to understand the mechanisms involved.
This thesis describes the synthesis and characterization of a novel manganese alkoxide and its use in sol–gel processing of magnetoresistive perovskite manganites. In searching for a soluble manganese alkoxide for sol–gel processing, we found that the methoxy-ethoxide, [Mn19O12(moe)14(moeH)10]·moeH, has a high solubility in appropriate organic solvents. Being 1.65 nm across, it is one of the largest alkoxides reported; it is also of interest because of its (for oxo-alkoxides) rare planar structure. After mixing with La, Nd, Ca, Sr, and Ba methoxy-ethoxides, [Mn19O12(moe)14(moeH)10]·moeH was used in the first purely alkoxide based sol–gel processing of perovskites manganites. The phase evolution on heating xerogel powders to 1000°C was studied, and thin films were prepared by spin-coating.
It was found that the easily oxidised Mn-alkoxide facilitates the formation of high oxygen-excess modifications of the perovskites. The reactive precursor system yields fully hydrolysed gels almost without organic residues, but the gel absorbs CO2 from the air, leading to carbonate formation. The carbonate decomposition is the limiting step in oxide formation. Transport measurements of La0.67Ca0.33MnO3 films on LaAlO3 substrate show that all-alkoxide sol–gel derived films can compete with PLD films in terms of quality of epitaxy and transport. The somewhat different behaviour of the sol–gel derived films compared to PLD films is attributed to differences in morphology and oxygen stoichiometry.
Engelmayer, Johannes [Verfasser], Thomas [Gutachter] Lorenz, and Markus [Gutachter] Braden. "Crystal growth and characterization of doped perovskite titanates ATiO3 and single-layered manganites R1-xA1+xMnO4 / Johannes Engelmayer ; Gutachter: Thomas Lorenz, Markus Braden." Köln : Universitäts- und Stadtbibliothek Köln, 2020. http://d-nb.info/1225478472/34.
Повний текст джерелаWang, Lin, and 汪琳. "Thin films and heterojunctions of tetravalent hafnium ion(Hf4+) doped perovskite manganite La1-xHfxMnO3." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45451308.
Повний текст джерелаMONTEIRO, NATALIA K. "Síntese e caracterização de manganita-cromita de lantânio dopada com rutênio para anodos de células a combustível de óxidos sólidos." reponame:Repositório Institucional do IPEN, 2011. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10041.
Повний текст джерелаMade available in DSpace on 2014-10-09T14:00:10Z (GMT). No. of bitstreams: 0
Dissertação (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
"Transport properties of heterostructure p-n junction formed between perovskite manganites and niobium doped strontium titanate." 2005. http://library.cuhk.edu.hk/record=b5892675.
Повний текст джерелаThesis (M.Phil.)--Chinese University of Hong Kong, 2005.
Includes bibliographical references.
Text in English; abstracts in English and Chinese.
Lai Chun Hei Gary = Meng yang hua wu-ni shan za zhi tai suan si yi gou jie de shu yun te xing / Li Zhenxi.
Acknowledgement --- p.i
Abstract --- p.ii
論文摘要 --- p.iv
Table of contents --- p.vi
List of Figures --- p.x
List of Tables --- p.xv
Chapter Chapter 1 --- Introduction
Chapter 1.1 --- Introduction to perovskite manganites and niobium doped strontium titanate --- p.1-1
Chapter 1.1.1 --- Structure and properties of perovskite manganites --- p.1-1
Chapter 1.1.2 --- Structure and properties of niobium doped strontium titanate --- p.1-4
Chapter 1.1.3 --- Phase transition in perovskite manganites --- p.1-9
Chapter 1.1.4 --- Charge ordering and small polaron theory in PCMO --- p.1-15
Chapter 1.1.5 --- Colossal Magnetoresistance (CMR) in perovskite manganites --- p.1-19
Chapter 1.16 --- Review of semiconducting junction between perovskite manganites and niobium doped strontium titanate --- p.1-23
Chapter 1.2 --- Research motivation --- p.1-28
Chapter 1.3 --- Scope of this thesis --- p.1-29
References --- p.1-31
Chapter Chapter 2 --- Experimental details
Chapter 2.1 --- Thin film deposition --- p.2-1
Chapter 2.1.1 --- Facing-target sputtering --- p.2-1
Chapter 2.1.2 --- Vacuum system --- p.2-3
Chapter 2.1.3 --- Fabrication and characterization of manganites targets --- p.2-4
Chapter 2.1.4 --- Substrate --- p.2-7
Chapter 2.1.5 --- Deposition procedure --- p.2-8
Chapter 2.1.6 --- Silver electrode coating apparatus --- p.2-10
Chapter 2.2 --- Annealing systems --- p.2-12
Chapter 2.2.1 --- Vacuum annealing system --- p.2-12
Chapter 2.2.2 --- Oxygen annealing system --- p.2-14
Chapter 2.3 --- Characterization --- p.2-16
Chapter 2.3.1 --- Profilometer --- p.2-16
Chapter 2.3.2 --- X-ray diffractometer --- p.2-16
Chapter 2.3.3 --- Resistance measurement system --- p.2-18
Chapter 2.3.4 --- Current-voltage characteristics measurement system --- p.2-20
References --- p.2-23
Chapter Chapter 3 --- Epitaxial LCMO/STON heterojunction
Chapter 3.1 --- Four point and two point I-V measurement --- p.3-1
Chapter 3.2 --- Magnetic phase transition of LCMO revealed by four point I-V measurement of LCMO/STON heteroj unction --- p.3-8
Chapter 3.3 --- Oxygen annealing effect on LCMO/STON heteroj unction --- p.3-14
Chapter 3.4 --- Positive colossal Magnetoresistance in LCMO/STON heteroj unction --- p.3-16
References --- p.3-23
Chapter Chapter 4 --- Epitaxial PCMO/STON heterojunction
Chapter 4.1 --- Ohmic contact for PCMO thin films --- p.4-1
Chapter 4.2 --- PCMO charge ordering and magnetic phase transition --- p.4-9
Chapter 4.3 --- Four point I-V measurement of PCMO/STON heterojunction --- p.4-14
References --- p.4-16
Chapter Chapter 5 --- Epitaxial LCMO/PCMO/STON junction
Chapter 5.1 --- Tunneling junction fabrication --- p.5-1
Chapter 5.2 --- Structural characterizations --- p.5-2
Chapter 5.3 --- PCMO magnetic phase transition revealed by I-V measurement of LCMO/PCMO/STON tunneling junction --- p.5-3
Chapter 5.4 --- Energy band structure of perovskite manganites --- p.5-11
Chapter 5.4.1 --- Introduction to energy band of perovskite manganites and STON --- p.5-11
Chapter 5.4.2 --- Temperature dependent band structure of LCMO explained by diffusion voltage of LCMO/STON heterojunction --- p.5-18
References --- p.5-22
Chapter Chapter 6 --- Conclusions
Chapter 6.1 --- Conclusion --- p.6-1
Chapter 6.2 --- Future outlook --- p.6-3
Pakhira, Nandan. "Spectral And Transport Properties Of Falicov-Kimball Related Models And Their Application To Manganites." Thesis, 2009. http://hdl.handle.net/2005/660.
Повний текст джерела"Investigation of the I-V characteristics of perovskite manganite-based niobium-doped heterojunctions." 2007. http://library.cuhk.edu.hk/record=b5893504.
Повний текст джерела"Sept 2007."
Thesis (M.Phil.)--Chinese University of Hong Kong, 2007.
Includes bibliographical references.
Text in English; abstracts in English and Chinese.
Wai, Kwai Fong = Meng yang hua wu - ni shan za zhi tai suan si yi gou jie de dian liu dian ya guan xi ce liang / Wei Guifang.
Acknowledgement
Abstract
論文摘要
Table of content
List of Figures
List of Tables
Appendix A
Chapter Chapter 1 --- Introduction
Chapter 1.1 --- Structure and properties of perovskite manganites
Chapter 1.2 --- Magnetoresistance (MR)
Chapter 1.3 --- Giant Magnetoresistance (GMR)
Chapter 1.4 --- Colossal Magnetoresistance (CMR)
Chapter 1.4.1 --- Exchange interaction and CMR
Chapter 1.5 --- p-n junction
Chapter 1.5.1 --- Fundamentals of a p-n homojunction
Chapter 1.5.2 --- Deviations from the Ideal Diode
Chapter 1.5.2.1 --- Zener breakdown
Chapter 1.5.2.2 --- Avalanche
Chapter 1.5.3 --- Heterojunction
Chapter 1.6 --- Research motivation
Chapter 1.7 --- Scope of the thesis
References
Chapter Chapter 2 --- Experimental details
Chapter 2.1 --- Thin film deposition
Chapter 2.1.1 --- Facing target sputtering
Chapter 2.1.2 --- Vacuum system
Chapter 2.1.3 --- Deposition procedure
Chapter 2.2 --- Oxygen annealing system
Chapter 2.3 --- Silver electrode coating apparatus
Chapter 2.4 --- Characterization
Chapter 2.4.1 --- Alpha-step profilometer
Chapter 2.4.2 --- X-ray diffractometer
Chapter 2.4.3 --- Electrical transport property measurement
Chapter 2.4.3.1 --- Measurement of resistance as a function of temperature (RT)
Chapter 2.4.3.2 --- Measurement of I-V characteristics of a junction
References
Chapter Chapter 3 --- Epitaxial LSMO/STON heterojunction
Chapter 3.1 --- Sample preparation
Chapter 3.2 --- Results and Analysis
Chapter 3.2.1 --- Structural analysis
Chapter 3.2.2 --- R-T measurement
Chapter 3.2.3 --- I-V measurement
Chapter 3.2.3.1 --- Analysis of diffusion voltage and breakdown voltage
Chapter 3.2.3.2 --- Construction of energy band diagram of LSMO/STON at room temperature
Chapter 3.2.3.3 --- Investigating how the energy band structure varies with the temperature
Chapter 3.2.3.4 --- Further development of the energy band analyzing method to wide-p/narrow-n heteroj unction
Chapter 3.2.3.5 --- Forward-biased deviations from ideal
Chapter 3.2.3.6 --- Discussion on the reasons for deviations from ideal
Chapter 3.2.4 --- MR determination
References
Chapter Chapter 4 --- Epitaxial [LSMO/PCMO] multilayers and p-n junction
Chapter 4.1 --- [LSMO/PCMO]/NGO multi-layered thin films
Chapter 4.1.1 --- Sample preparation
Chapter 4.1.2 --- Results and analysis
Chapter 4.1.2.1 --- Structural analysis
Chapter 4.1.2.2 --- R-T measurement
Chapter 4.2 --- [LSMO/PCMO]/STON multi-layered junction
Chapter 4.2.1 --- Sample preparation
Chapter 4.2.2 --- Results and analysis
Chapter 4.2.2.1 --- Structural analysis
Chapter 4.2.2.2 --- R-T measurement
Chapter 4.2.2.3 --- I-V measurement
Chapter 4.2.2.3.1 --- Analysis of diffusion voltage and breakdown voltage
Chapter 4.2.2.3.2 --- Investigating the energy band structure as a function of temperature
Chapter 4.2.2.3.3 --- Forward-biased deviations from an ideal junction diode
Chapter 4.2.2.3.4 --- Review on MR calculation
Chapter 4.2.2.3.5 --- Analysis of MR of [LSMO(8 A ) /PCMO(8 A)]/STON and LSMO/STON
References
Chapter Chapter 5 --- [La0 4Ca0.6MnO3/La0.8Ca0.2MnO3]p-n junction
Chapter 5.1 --- Sample preparation
Chapter 5.2 --- Result and analysis
Chapter 5.2.1 --- Structural analysis
Chapter 5.2.2 --- R-T measurement
Chapter 5.2.3 --- I-V measurement
Chapter 5.2.3.1 --- Analysis of diffusion voltage and breakdown voltage
Chapter 5.2.3.2 --- Investigating the energy band structure as a function of temperature
Chapter 5.2.3.3 --- Forward-biased deviations from ideal
Chapter 5.2.3.4 --- MR analysis
Chapter Chapter 6 --- Conclusion
Chapter 6.1 --- Conclusion
Chapter 6.2 --- Future outlook
Частини книг з теми "Doped Perovskite Manganites"
Eto, T., F. Honda, G. Oomi, and A. Sundaresan. "Effect of pressure on electrical transport in electron doped perovskite manganite Sr0.9Ce0.1MnO3." In Springer Proceedings in Physics, 230–31. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-59484-7_103.
Повний текст джерелаA. Abdel-Latif, Ihab. "Perovskite Strontium Doped Rare Earth Manganites Nanocomposites and Their Photocatalytic Performances." In Nanocomposites - Recent Evolutions. IntechOpen, 2019. http://dx.doi.org/10.5772/intechopen.79479.
Повний текст джерела"Structure–Property Relations in Rare-Earth Doped Manganite Perovskites: A Review." In Engineering Magnetic, Dielectric and Microwave Properties of Ceramics and Alloys, 149–74. Materials Research Forum LLC, 2019. http://dx.doi.org/10.21741/9781644900390-7.
Повний текст джерелаТези доповідей конференцій з теми "Doped Perovskite Manganites"
Huda, A., S. A. Halim, K. P. Lim, K. K. Kabashi, S. Elias, A. A. Sidek, and Z. Hishamuddin. "Structural, Electrical Transport and Magnetoresistive Studies of Pr and Nd Substituted on La2/3Ba1/3MnO3 Perovskite." In ASME 7th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2004. http://dx.doi.org/10.1115/esda2004-58535.
Повний текст джерелаGao, J., Z. P. Wu, L. Wan, and E. J. Guo. "Field effects and transport behavior in epitxaial thin films of perovskite manganites doped with tetravalent hafnium." In Annual International Conference on Optoelectronics, Photonics & Applied Physics (OPAP 2014). GSTF, 2014. http://dx.doi.org/10.5176/2301-3516_opap14.18.
Повний текст джерелаSrivastava, Archana, N. K. Gaur, Arun Pratap, and N. S. Saxena. "The Effect of A-site Cation Variance on the Thermal and Elastic Properties of Half Doped Perovskite Manganites." In 5TH NATIONAL CONFERENCE ON THERMOPHYSICAL PROPERTIES: (NCTP-09). AIP, 2010. http://dx.doi.org/10.1063/1.3466540.
Повний текст джерелаNedukh, S. V., A. A. Girich, A. A. Kharchenko, M. K. Khodzitsky, S. I. Tarapov, A. N. Pogorily, A. I. Tovstolytkin, and A. G. Belous. "Magnetoresonance features of strontium-doped lanthanum manganites-perovskites in microwave band." In 2010 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW). IEEE, 2010. http://dx.doi.org/10.1109/msmw.2010.5546029.
Повний текст джерелаChannagoudra, Ganesha, Ajay Kumar Saw, Susmitha P. Rao, and Vijaylakshmi Dayal. "Investigation of electronic and magneto-transport properties in Nd doped Pr0.67Sr0.33MnO3 perovskite manganite." In DAE SOLID STATE PHYSICS SYMPOSIUM 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0017711.
Повний текст джерела