PHOTOTHERMALLY MODULATED SPATIALLY-RESOLVED FMR DETECTION OF WALKER MODES IN YTTRIUM-IRON-GARNET SPHERES

Authors
VONGEISAU O RODELSPERGER F SCHREIBER F BENNER H PELZL J
Citation
O. Vongeisau et al., PHOTOTHERMALLY MODULATED SPATIALLY-RESOLVED FMR DETECTION OF WALKER MODES IN YTTRIUM-IRON-GARNET SPHERES, Journal de physique. IV, 4(C7), 1994, pp. 655-658
Citations number
7
Categorie Soggetti
Physics
Journal title
Journal de physique. IV → ACNP
ISSN journal
11554339
Volume
4
Issue
C7
Year of publication
1994
Pages
655 - 658
Database
ISI
SICI code
1155-4339(1994)4:C7<655:PMSFDO>2.0.ZU;2-Y
Abstract
The photothermally modulated (PM) ferromagnetic resonance (FMR) combin es the high sensitivity of conventional FMR and spatial resolution Thi s technique has been applied to a single-crystalline yttrium iron garn et (YIG) sphere with a diameter of 2 mm. For the first time, the spati al variation of the high-frequency magnetization patterns known as Wal ker modes were visualized and it is thus shown that PM-FMR can even be applied to unfavourable geometries.