材料科学
磁各向异性
凝聚态物理
各向异性
矫顽力
磁化
铁电性
基质(水族馆)
异质结
剩磁
薄膜
磁场
核磁共振
光电子学
电介质
纳米技术
光学
量子力学
海洋学
物理
地质学
作者
Okan Özdemir,A. Altındal,Leyla Çolakerol Arslan
摘要
We have investigated the effect of an external electric field on the magnetic properties of Co2MnAl thin films deposited on a lead magnesium niobate-lead titanate (PMN-PT) (011) substrate. Stain-induced magnetoelectric coupling affects the magnetic properties of the Co2MnAl/PMN-PT system. The piezo-strain induced by applying an external field normal to the surface induces only in-plane strain, which leads to the rotation of easy-axis orientation of Co2MnAl from [100] to [011¯] direction. The remanent magnetization states and coercivity of the Co2MnAl film vary significantly and asymmetrically with the applied voltage due to anisotropic strain originating from PMN-PT. Electrical control of magnetic anisotropy in a Co2MnAl Heusler compound at room temperature will be of interest for realizing next-generation magnetoelectric random access memory devices.
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