Department of Physics, Fudan University, Shanghai , China

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Department of Physics, Fudan University, Shanghai 200433, China Extrinsic Anomalous Hall effect in paramagnetic NiCu alloys 李禹帆导师：金晓峰 Department of Physics, Fudan University, Shanghai 200433, China Mechanism of Anomalous Hall Effect Fe Intrinsic contribution Karplus & Luttinger (1954) T. Jungwirth, Q. Niu and A. H. MacDonald (2002) M. Onoda and N. Nagaosa (2002) Yuan Tian, Li Ye, and Xiaofeng Jin*, PRL 103, 087206 Skew Scattering J. Smit (1955) Extrinsic Side Jump L. Berger (1970) Ni34Cu66 on MgO(001) α β -0.0110.001 27528 Proceedings of the Royal Society of London Vol.248 A, P145 1958 Fitting result: : : Summary: We managed to separate a linear term and a quadratic term of AHE, presumably arising only from extrinsic mechanism. More effort to be made to pin down the T dependence of the quadratic term and its origin: side jump or second order of skew scattering.