Materials and Nanoscience, Nebraska Center for (NCMN)
Date of this Version
2-8-2017
Citation
056222-2 Skomski et al. AIP Advances 7, 056222 (2017) Page 1-5
Abstract
It is investigated how magnetostatic interactions affect the coercivity of alnicotype magnets. Starting from exact micromagnetic relations, we analyze two limits, namely cooperative reversal processes operative on short lengths scales and noncooperative reversal processes on long length scales. In alnicos, intrawire interactions are predominantly cooperative, whereas interwire effects are typically noncooperative. However, the transition between the regimes depends on feature size and hysteresis-loop shape, and interwire cooperative effects are largest for nearly rectangular loops. Our analysis revises the common shape-anisotropy interpretation of alnicos.
Included in
Atomic, Molecular and Optical Physics Commons, Condensed Matter Physics Commons, Engineering Physics Commons, Other Physics Commons
Comments
© 2017 Author(s).