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arXiv 1004.0548cond-mat.mtrl-sci
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反常霍尔效应随自旋轨道耦合强度的非单调变化

Non-monotonic variation of anomalous Hall effect with spin orbit coupling strength

M. Chen, Z. Shi, S. M. Zhou, J. Li, W. J. Xu, X. X. Zhang, J. Du

摘要:

对于L1(0)FePt薄膜,反常霍尔电阻率与自发磁化强度$M_{\mathrm{S}}$成正比。在消除$M_{\mathrm{S}}$温度效应后,$ρ_{\mathrm{xyo}}$可由$ρ_{\mathrm{xyo}}=a_{\mathrm{o}}ρ_{\mathrm{xx}}+ b_{\mathrm{o}}ρ_{\mathrm{xx}}^{\mathrm{2}}$拟合。$a_{\mathrm{o}}$和$b_{\mathrm{o}}$随化学长程有序度$S$非单调变化。相应地,表明对于L1(0)FePt膜,自旋轨道耦合强度随着$S$的增加而单调增加。

英文摘要:

For L1(0) FePt films, the anomalous Hall resistivity is found to be proportional to spontaneous magnetization $M_{\mathrm{S}}$. After the $M_{\mathrm{S}}$ temperature effect is eliminated, $ρ_{\mathrm{xyo}}$ can be fitted by $ρ_{\mathrm{xyo}}=a_{\mathrm{o}}ρ_{\mathrm{xx}}+ b_{\mathrm{o}}ρ_{\mathrm{xx}}^{\mathrm{2}}$. $a_{\mathrm{o}}$ and $b_{\mathrm{o}}$ change non-monotonically with chemical long range ordering degree $S$. Accordingly, it is indicated that for L1(0) FePt films the spin orbit coupling strength increases monotonically with increasing $S$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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