Elastically controlled magnetic phase transition in Ga-FeRh/BaTiO3(001) heterostructure

被引：52
作者：
Suzuki, Ippei [1 ]
Itoh, Mitsuru [1 ]
Taniyama, Tomoyasu [1 ]
机构：
[1] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan
来源：
APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 02期
关键词：
D O I：
10.1063/1.4861455
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We demonstrate elastically induced ferromagnetic to antiferromagnetic phase transition of Ga-substituted FeRh thin films on BaTiO3(001). It is found that two abrupt changes of magnetization occur at the successive phase transitions from the tetragonal to orthorhombic and the orthorhombic to rhombohedral phases of BaTiO3. Magnetization and magnetoresistance together clearly reveal that a ferromagnetic to antiferromagnetic phase transition is induced due to the compressive lattice strain accompanied by the orthorhombic to rhombohedral structural phase transition, while the tetragonal to orthorhombic phase transition causes a change in the symmetry of the magnetic anisotropy in the ferromagnetic phase of FeRh. (C) 2014 AIP Publishing LLC.
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