We study the electron drag force acting on a moving dislocation in the presence of strong magnetic field H. We show that the drag force has a sharp minimum phi = 0, where phi is an angle between the dislocation axis and H. The typical width of the minimum is of the order of phi(c) = V/v(F) (V is the velocity of dislocation and v(F) is the Fermi velocity). The minimum is due to the compensation of the deformation and electromagnetic contributions to the electron-dislocation interaction. For phi > phi(c) compensation does not take place and the drag force increases linearly with increasing H. This form of the angular dependence of the drag force is in a qualitative agreement with recent experimental data. [References: 23]
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机译：我们研究了在强磁场H存在下作用于运动位错的电子拖曳力。我们发现拖曳力具有最小的phi = 0锐角，其中phi是位错轴与H之间的夹角。最小值约为phi（c）= V / v（F）（V是位错速度，而v（F）是费米速度）。最小值是由于形变补偿和电磁对电子-位错相互作用的贡献。对于phi> phi（c）不会进行补偿，并且拖曳力会随着H的增加而线性增加。这种形式的拖曳力与角度的关系与最新的实验数据在质量上是一致的。 [参考：23]
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