Longitudinal and transverse magnetoresistance in films with tilted out-of-plane magnetic anisotropy
Longitudinal and transverse magnetoresistance in films with tilted out-of-plane magnetic anisotropy
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DOI：
10.1103/physrevb.99.064432
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发表时间：
2019-02-25
影响因子：
3.7
通讯作者：
Gerber, Alexander
中科院分区：
文献类型：
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作者：
Eden, Noga;Kopnov, Gregory;Gerber, Alexander
倾斜的离面磁各向异性诱导两个不寻常的特征磁输运现象：在面内磁场的存在下的异常霍尔效应，和在垂直于样品平面的场的存在下的非单调各向异性磁阻。我们的实验表明，这些影响是通用的，出现在多个铁磁系统倾斜的各向异性引入倾斜沉积从一个单一的来源或从单独的来源共沉积的二元系统。我们提出了一个理论模型，证明这些意见是标准的非凡霍尔效应和各向异性磁阻的自然结果，当倾斜的各向异性是适当的占。这种情况可能有助于解释其他研究小组先前进行的各种有趣的测量。
Tilted off-plane magnetic anisotropy induces two unusual characteristic magnetotransport phenomena: extraordinary Hall effect in the presence of an in-plane magnetic field, and nonmonotonic anisotropic magnetoresistance in the presence of a field normal to the sample plane. We show experimentally that these effects are generic, appearing in multiple ferromagnetic systems with tilted anisotropy introduced either by oblique deposition from a single source or in binary systems codeposited from separate sources. We present a theoretical model demonstrating that these observations are natural results of the standard extraordinary Hall effect and anisotropic magnetoresistance, when the tilted anisotropy is properly accounted for. Such a scenario may help explain various previous intriguing measurements by other groups.