Coherent sliding dynamics and spin motive force driven by crossed magnetic fields in chiral helimagnet
Strongly Correlated Electrons
2015-06-12 v1 Mesoscale and Nanoscale Physics
Materials Science
Abstract
We demonstrated that the chiral soliton lattice formed out of a chiral helimagnet exhibits coherent sliding motion by applying a time-dependent magnetic field parallel to the helical axis, in addition to a static field perpendicular to the helical axis. To describe the coherent sliding, we use the collective coordinate method and numerical analysis. We also show that the time-dependent sliding velocity causes a time-varying Berry cap which causes the spin-motive-force. A salient feature of the chiral soliton lattice is appearance of the strongly amplified spin motive force which is directly proportional to the macroscopic number of solitons (magnetic kinks).
Keywords
Cite
@article{arxiv.1212.3053,
title = {Coherent sliding dynamics and spin motive force driven by crossed magnetic fields in chiral helimagnet},
author = {Jun-ichiro Kishine and I. G. Bostrem and A. S. Ovchinnikov and Vl. E. Sinitsyn},
journal= {arXiv preprint arXiv:1212.3053},
year = {2015}
}
Comments
13 pages, 13figures,accepted for publication in Physical Review B