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Analytical treatment of in-plane magnetotransport in the Falicov-Sievert model

机译:Falicov-Sievert模型中平面内磁传输的分析处理

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摘要

We derive an analytical expression which allows efficient computation of the effect of all the Fermi-surface trajectories induced by a combination of Bragg scattering and magnetic breakdown on the in-plane components of the resistivity tensor. The particular network of coupled orbits which we consider was first formulated by Falicov and Sievert, who studied the problem numerically. Our approach, based upon a method used previously to derive an analytical solution for interlayer transport, allows us to show that the conductivity tensor can be written as a sum of a matrix representing the effect of total magnetic "breakdown and one representing a combination of complex electronic trajectories, and we find a compact expression for the in-plane components of the resistivity tensor that can be evaluated straightforwardly.
机译:我们推导出一个解析表达式,该表达式可以有效地计算所有布拉格费米面轨迹的影响,这些轨迹是由布拉格散射和磁击穿对电阻率张量的平面分量的组合所引起的。我们考虑的特定耦合轨道网络是由Falicov和Sievert首先提出的,他们对问题进行了数值研究。我们的方法基于先前用于得出层间传输分析解决方案的方法,使我们能够证明,电导率张量可以表示为表示总磁“击穿效应”的矩阵的总和,以及表示复数的组合的矩阵的总和电子轨迹,我们发现了电阻率张量的平面内分量的紧凑表达式,可以直接对其进行评估。

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