| Numéro |
J. Phys. IV France
Volume 04, Numéro C7, Juillet 1994
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique |
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|---|---|---|
| Page(s) | C7-655 - C7-658 | |
| DOI | https://doi.org/10.1051/jp4:19947155 | |
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-655-C7-658
DOI: 10.1051/jp4:19947155
1 Fakultät für Physik und Astronomie, AG Festkörperspektroskopie, Ruhr-Universität Bochum, 44780 Bochum, Germany
2 Institut für Festkörperphysik, Technische Hochschule Darmstadt, 64289 Darmstadt, Germany
© EDP Sciences 1994
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-655-C7-658
DOI: 10.1051/jp4:19947155
Photothermally modulated spatially resolved FMR detection of Walker modes in yttrium iron garnet spheres
O. von Geisau1, F. Rödelsperger2, F. Schreiber1, H. Benner2 and J. Pelzl11 Fakultät für Physik und Astronomie, AG Festkörperspektroskopie, Ruhr-Universität Bochum, 44780 Bochum, Germany
2 Institut für Festkörperphysik, Technische Hochschule Darmstadt, 64289 Darmstadt, Germany
Abstract
The photothermally modulated (PM) ferromagnetic resonance (FMR) combines the high sensitivity of conventional FMR and spatial resolution. This technique has been applied to a single-crystalline yttrium iron garnet (YIG) sphere with a diameter of 2 mm. For the first time, the spatial variation of the high-frequency magnetization patterns known as Walker modes were visualized and it is thus shown that PM-FMR can even be applied to unfavourable geometries.
© EDP Sciences 1994