论文标题

la $ _ {2-x} $ sr $ _x $ cuo $ _4 $:各向异性散射的效果

Magnetotransport in overdoped La$_{2-x}$Sr$_x$CuO$_4$: Effect of anisotropic scattering

论文作者

Mao, Rui-Ying, Wang, Da, Wang, Qiang-Hua

论文摘要

我们通过结合过多的LA基酸酯中的顶氧空位引起的各向异性散射来重新审视大厅效应和磁倍率。费米液体图片中的理论计算与少数异常的磁通数据非常吻合,仅使用各向同性散射速率比结果更好。特别是,我们获得了Hall系数$ r_h $的上升,温度$ t $,最初的磁场$ r_h $在整个磁场中的$ r_h $ $ r_h $在整个磁场中$ b $,线性电阻率$ρ$与van hove掺杂水平附近的$ b $,磁层的温度依赖性,磁层的依赖性比例,以及违反Kohller的法律。这些结果表明,在费米液体图片中实际上可以理解许多异常的运输行为$ _ {2-x} $ _x $ _x $ _4 $ $ _4 $。

We revisit the Hall effect and magnetoresistivity by incorporating the anisotropic scattering caused by apical oxygen vacancies in overdoped La-based cuprates. The theoretical calculations within the Fermi liquid picture agree well with a handful of anomalous magneto-transport data, better than the results using an isotropic scattering rate alone. In particular, we obtain the upturn of Hall coefficient $R_H$ with decreasing temperature $T$, the initial drop of $R_H$ in magnetic field $B$ in all overdoped regimes, the linear resistivity $ρ$ versus $B$ near the van Hove doping level, the temperature dependence of the magnetoresistivity ratio, and the violation of Kohler's law. These results suggest that many of the anomalous transport behaviors in overdoped La$_{2-x}$Sr$_x$CuO$_4$ could actually be understood within the Fermi liquid picture.

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