Asymmetric magneto-optic response in anisotropic thin films

Autor:	R.M. Osgood, Robert L. White, Bruce M. Clemens
Rok vydání:	1997
Předmět:	Transverse plane Hysteresis Magnetic anisotropy Magnetization Materials science Kerr effect Condensed matter physics Magneto-optic Kerr effect media_common.quotation_subject Anisotropy Asymmetry media_common
Zdroj:	Physical Review B. 55:8990-8996
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.55.8990
Popis:	We report asymmetric hysteresis loops measured using the magneto-optic Kerr effect from epitaxial Fe(110) and Co(110) thin films with in-plane magnetic anisotropy. This asymmetry appears to violate the invariance of the hysteresis loop under the transformation M\ensuremath{\rightarrow}-M, H\ensuremath{\rightarrow}-H (M is the magnetization and H is the applied field). The asymmetric magneto-optic response is due to a product of the longitudinal and transverse components of the magnetization and proves the existence of the transverse component of the magnetization and, therefore, of the coherent rotation model of magnetization reversal. We simulate the observed hysteresis loops with a term in the magneto-optic response second order in the magnetization that is much larger than predicted by the standard magneto-optic theory.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::867ec0dad06c3e212b05ae5985aa89e9 https://doi.org/10.1103/physrevb.55.8990 Zobrazit plný text záznamu