Strain-induced reversible and irreversible magnetization switching in Fe/BaTiO3 heterostructures
Strain-induced reversible and irreversible magnetization switching in Fe/BaTiO3 heterostructures
复制标题
DOI：
10.1063/1.3684695
复制
发表时间：
2012-02
影响因子：
3.2
通讯作者：
G. Venkataiah;Y. Shirahata;I. Suzuki;M. Itoh;T. Taniyama
中科院分区：
文献类型：
--
作者：
G. Venkataiah;Y. Shirahata;I. Suzuki;M. Itoh;T. Taniyama
在Fe/BaTiO3异质结构中，由于BaTiO3的结构相变引起界面晶格畸变，证明了Fe薄膜的磁化开关。在零外加磁场和小的负外加磁场下，Fe薄膜的面内磁化强度的温度依赖性清楚地揭示了Fe/BaTiO3异质结构中存在可逆和不可逆的磁化转换过程。磁性各向异性的对称性随着BaTiO3从四方相到正交相的结构转变而改变，证实了磁化取向的变化。在Fe/BaTiO3异质结构中，由于BaTiO3的结构相变引起界面晶格畸变，证明了Fe薄膜的磁化开关。在零外加磁场和小的负外加磁场下，Fe薄膜的面内磁化强度的温度依赖性清楚地揭示了Fe/BaTiO3异质结构中存在可逆和不可逆的磁化转换过程。磁性各向异性的对称性随着BaTiO3从四方相到正交相的结构转变而改变，证实了磁化取向的变化。
Magnetization switching of an Fe film in Fe/BaTiO3 heterostructures is demonstrated due to the interface lattice distortion caused by the structural phase transition of BaTiO3. The temperature dependence of in-plane magnetization of the Fe film in both zero and a small negative applied magnetic field clearly reveals that the reversible and irreversible magnetization switching processes occur in the Fe/BaTiO3 heterostructures. The variation in the magnetization orientation is corroborated by the fact that the symmetry of the magnetic anisotropy changes as the BaTiO3 undergoes the structural phase transition from the tetragonal to orthorhombic phases.Magnetization switching of an Fe film in Fe/BaTiO3 heterostructures is demonstrated due to the interface lattice distortion caused by the structural phase transition of BaTiO3. The temperature dependence of in-plane magnetization of the Fe film in both zero and a small negative applied magnetic field clearly reveals that the reversible and irreversible magnetization switching processes occur in the Fe/BaTiO3 heterostructures. The variation in the magnetization orientation is corroborated by the fact that the symmetry of the magnetic anisotropy changes as the BaTiO3 undergoes the structural phase transition from the tetragonal to orthorhombic phases.