当前驱动型域壁运动理论：一种简化方法
介观与纳米尺度物理
2016-08-31 v1
摘要
presented a self-contained theory of the domain wall dynamics in ferromagnets under finite electric current. The current is shown to have two effects; one is momentum transfer, which is proportional to the charge current and wall resistivity (), and the other is spin transfer, proportional to spin current. For thick walls, as in metallic wires, the latter dominates and the threshold current for wall motion is determined by the hard-axis magnetic anisotropy, except for the case of very strong pinning. For thin walls, as in nanocontacts and magnetic semiconductors, the momentum-transfer effect dominates, and the threshold current is proportional to , being the pinning potential.
引用
@article{arxiv.cond-mat/0308464,
title = {Theory of Current-Driven Domain Wall Motion: A Poorman's Approach},
author = {Gen Tatara and Hiroshi Kohno},
journal= {arXiv preprint arXiv:cond-mat/0308464},
year = {2016}
}