期刊
AIP ADVANCES
卷 6, 期 1, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4939696
关键词
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资金
- National Natural Science Foundation of China [51171129, 51201114, 10974032, 11104054]
- National Basic Research Program of China [2009CB929201]
- Shanghai Committee of Science and Technology [11JC1412700]
- Ministry of Education of China [20120072120043]
- Fundamental Research Funds for the Central Universities
- Shanghai Nanotechnology Program Center [0252nm004]
The anomalous Hall effect (AHE) and magneto-crystalline anisotropy (MCA) are investigated in epitaxial NixFe1-x thin films grown on MgO (001) substrates. The scattering independent term b of anomalous Hall conductivity shows obvious correlation with cubic magneto-crystalline anisotropy K-1. When nickel content x decreasing, both b and K-1 vary continuously from negative to positive, changing sign at about x = 0.85. Ab initio calculations indicate NixFe1-x has more abundant band structures than pure Ni due to the tuning of valence electrons (band fillings), resulting in the increased b and K-1. This remarkable correlation between b and K-1 can be attributed to the effect of band filling near the Fermi surface. (C) 2016 Author(s).
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