A-site isovalent substitution effect in the double manganites Nd1-xSmxBaMn2O6

被引：2
|
作者：
Sterkhov, E. V. [1 ]
Uporov, S. A. [1 ]
Vedmid, L. B. [1 ]
Fedorova, O. M. [1 ]
Mostovshchikova, E. V. [2 ]
Titova, S. G. [1 ]
机构：
[1] Russian Acad Sci, Inst Met, Ural Branch, Ekaterinburg 620016, Russia
[2] Russian Acad Sci, MN Miheev Inst Met Phys, Ural Branch, Ekaterinburg 620108, Russia
来源：
MATERIALS TODAY COMMUNICATIONS | 2023年 / 34卷
关键词：
Double manganite; A -site ordering; Substitution; Magnetic properties; IR absorption; RBAMN2O6; R; ORDERED MANGANITES; DOUBLE-PEROVSKITE; ANODE;
D O I：
10.1016/j.mtcomm.2022.105005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Solid solutions of ordered double manganites Nd1?xSmxBaMn2O6 are reviewed. The diagram of electric and magnetic states is reported. The temperatures of charge-orbital ordering and metal-insulator phase transitions are monotonic functions of Sm concentration. With 10-20 % Sm content, the coexistence of ferromagnetic and antiferromagnetic interactions leads to complex magnetic properties. Between x = 0.1 and x = 0.25 at room temperature two phases coexist: conductor with orthorhombic Pmmm structure and insulator with pseudotetragonal P4/mmm structure. The decrease of the N e ' el temperature for x = 0.2-0.5 is explained by a competition between A- and CE- types antiferromagnetic ordering.
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页数：7
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