Random potential effect near the bicritical region in perovskite manganites as revealed by comparison with the ordered perovskite analogs.

作者: D. Akahoshi , M. Uchida , Y. Tomioka , T. Arima , Y. Matsui

DOI: 10.1103/PHYSREVLETT.90.177203

关键词: Materials scienceSolid solutionPerovskite (structure)FerromagnetismMagnetoresistanceCondensed matter physicsPhase diagramRare earthRandom potentialPerovskite manganites

摘要: … A-site ordered perovskite with the alternate stack of LnO and BaO layers along the c axis, and (b) the A-site disordered (solid-solution) perovskite with cubic structure. The lattice images …

参考文章(21)
Y. Tokura, Orbital Physics in Transition-Metal Oxides Science. ,vol. 288, pp. 462- 468 ,(2000) , 10.1126/SCIENCE.288.5465.462
Elbio Dagotto, Takashi Hotta, Adriana Moreo, Colossal Magnetoresistant Materials: The Key Role of Phase Separation arXiv: Strongly Correlated Electrons. ,(2000) , 10.1016/S0370-1573(00)00121-6
S. Mori, C. H. Chen, S-W. Cheong, Paired and Unpaired Charge Stripes in the Ferromagnetic Phase of La 0.5 Ca 0.5 MnO 3 Physical Review Letters. ,vol. 81, pp. 3972- 3975 ,(1998) , 10.1103/PHYSREVLETT.81.3972
Adriana Moreo, Seiji Yunoki, Elbio Dagotto, Phase Separation Scenario for Manganese Oxides and Related Materials Science. ,vol. 283, pp. 2034- 2040 ,(1999) , 10.1126/SCIENCE.283.5410.2034
M. Uehara, S. Mori, C. H. Chen, S.-W. Cheong, Percolative phase separation underlies colossal magnetoresistance in mixed-valent manganites Nature. ,vol. 399, pp. 560- 563 ,(1999) , 10.1038/21142
A. Barnabé, A. Maignan, M. Hervieu, F. Damay, C. Martin, B. Raveau, Extension of colossal magnetoresistance properties to small A site cations by chromium doping in Ln0.5Ca0.5MnO3 manganites Applied Physics Letters. ,vol. 71, pp. 3907- 3909 ,(1997) , 10.1063/1.120540
B. Raveau, A. Maignan, C. Martin, Insulator–Metal Transition Induced by Cr and Co Doping in Pr0.5Ca0.5MnO3 Journal of Solid State Chemistry. ,vol. 130, pp. 162- 166 ,(1997) , 10.1006/JSSC.1997.7373
T. Kimura, Y. Tomioka, R. Kumai, Y. Okimoto, Y. Tokura, Diffuse Phase Transition and Phase Separation in Cr-Doped Nd 1/2 Ca 1/2 MnO 3 : A Relaxor Ferromagnet Physical Review Letters. ,vol. 83, pp. 3940- 3943 ,(1999) , 10.1103/PHYSREVLETT.83.3940
J. Paul Attfield, A simple approach to lattice effects in conducting perovskite-type oxides Chemistry of Materials. ,vol. 10, pp. 3239- 3248 ,(1998) , 10.1021/CM980221S