Electron-lattice correlations and phase transitions in CMR manganites

被引：11
|
作者：
Moshnyaga, V. [1 ]
Samwer, K. [1 ]
机构：
[1] Univ Gottingen, Inst Phys 1, D-37077 Gottingen, Germany
来源：
ANNALEN DER PHYSIK | 2011年 / 523卷 / 8-9期
关键词：
Perovskite manganites; colossal magnetoresistance; electron-phonon interaction; metal-insulator transition; structural phase transition; oxide films and superlattices; COLOSSAL MAGNETORESISTANCE; NEUTRON-DIFFRACTION; SPIN POLARIZATION; DOUBLE EXCHANGE; THIN-FILMS; OXIDE; RESISTIVITY; DIAGRAM;
D O I：
10.1002/andp.201100040
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Interrelations between global and local structure and magnetism and transport in three-dimensional perovskite manganites is reviewed and compared with recent studies on thin films and superlattices. The concept of correlated Jahn-Teller (JT) polarons is discussed within the phase separation scenario; their role in the local and global structural modifications of manganites is demonstrated. Polaron correlations, affected by external control parameters (temperature, electric and magnetic fields, doping, light, strain) may be very efficient to modify the ground state of manganites. Examples of electronic control of the structure by means of interface modifications, electric field and mechanical strain are highlighted. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：652 / 663
页数：12
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