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Extraordinary Hall effect on Fe-rich amorphous thin films and Fe-rich/Cu multilayers

机译:富铁非晶薄膜和富铁/铜多层膜的非凡霍尔效应

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In this study we investigated the magnetic and transport properties of thin Fe-rich amorphous films and Fe-rich/Cu multilayers. We compared the extraordinary Hall effect in these two types of samples and discussed it in terms of thickness and sample structure. The thicker films exhibited a strong in-plane magnetic anisotropy, and by decreasing film thickness both saturated Hall resistivity and Hall sensitivity increase. A Hall resistivity value of 20 μ cm is observed in 100 nm thick Fe-rich films at 12 K and a sensitivity of 1.3 /T is obtained at room temperature. Electrical conductance increases and Hall resistivity decreases when the films are sandwiched with Cu.
机译:在这项研究中,我们研究了富铁非晶薄膜和富铁/铜多层薄膜的磁性和传输性能。我们比较了这两种类型样品的非凡霍尔效应,并从厚度和样品结构方面进行了讨论。较厚的膜表现出很强的面内磁各向异性,并且通过减小膜厚度,饱和霍尔电阻率和霍尔灵敏度都会增加。在12 K下,在100 nm厚的富铁薄膜中观察到20μcm的霍尔电阻率,在室温下获得的灵敏度为1.3 / T。当薄膜被铜夹在中间时,电导率增加而霍尔电阻率降低。

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