Pinning of a Bloch point by an atomic lattice
Materials Science
2013-11-07 v2 Mesoscale and Nanoscale Physics
Abstract
Bloch points are magnetic topological defects. The discrete nature of a magnetic lattice creates a periodic potential that can pin a Bloch point. The pinning force is of the order of the exchange constant, a few piconewtons in a typical ferromagnet (permalloy). A domain wall containing a Bloch point can have a sizable depinning field in the tens of oersted.
Keywords
Cite
@article{arxiv.1301.6452,
title = {Pinning of a Bloch point by an atomic lattice},
author = {Se Kwon Kim and Oleg Tchernyshyov},
journal= {arXiv preprint arXiv:1301.6452},
year = {2013}
}
Comments
7 pages, 8 figures, new version with changes requested by referees