REVERSIBLE AND IRREVERSIBLE RELAXATION OF MAGNETIC-PERMEABILITY IN PHOTOEXCITED YTTRIUM-IRON-GARNET

Authors
HISATAKE K MATSUBARA I MAEDA K LYAKHIMETS SN
Citation
K. Hisatake et al., REVERSIBLE AND IRREVERSIBLE RELAXATION OF MAGNETIC-PERMEABILITY IN PHOTOEXCITED YTTRIUM-IRON-GARNET, JPN J A P 1, 32, 1993, pp. 348-350
Citations number
12
Categorie Soggetti
Physics, Applied
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS → ACNP
Volume
32
Year of publication
1993
Supplement
32-3
Pages
348 - 350
Database
ISI
SICI code
Abstract
Photoinduced variation of magnetic complex permeability mu = mu' - jmu '' at low frequency, e.g., 0. 14 kHz is studied as a function of tempe rature in yttrium iron garnet (YIG). We have observed a new phenomenon in YIG occurring solely after illuminated at low temperature; photoin duced disaccommodation. We discussed an origin of the observation, tak ing account of the charge state of oxygen vacancy and an interaction b etween lattice relaxation and domain wall.