Coherent Magnetic Moment Reversal in Small Particles with Nuclear Spins
Condensed Matter
2007-05-23 v1
Abstract
A discrete WKB method is developed for calculating tunnel splittings in spin problems. The method is then applied to the issue of how nuclear spins affect the macroscopic quantum coherence of the total magnetic moment in small magnetic particles. The results are compared with numerical work, and with previous instanton based analytic approaches.
Keywords
Cite
@article{arxiv.cond-mat/9907198,
title = {Coherent Magnetic Moment Reversal in Small Particles with Nuclear Spins},
author = {Anupam Garg},
journal= {arXiv preprint arXiv:cond-mat/9907198},
year = {2007}
}
Comments
8 embedded ps figures; article in tutorial volume from Workshop at Inst. Nucl. Theory, U. Washington, Seattle, Spring 1997