Haertinger, M. and Back, C. H. and Lotze, J. and Weiler, M. and Gepraegs, S. and Huebl, H. and Goennenwein, S. T. B. and Woltersdorf, G. (2015) Spin pumping in YIG/Pt bilayers as a function of layer thickness. PHYSICAL REVIEW B, 92 (5): 054437. ISSN 1098-0121, 1550-235X
Full text not available from this repository. (Request a copy)Abstract
We systematically investigate the spin-pumping effect in a series of yttrium-iron-garnet (YIG)-platinum (Pt) bilayers, comparing both broadband ferromagnetic resonance and electrically detected spin-pumping experiments. We infer the effective spin-mixing conductance as a function of YIG and Pt layer thickness from ferromagnetic resonance measurements on pure YIG layers as well as on bilayer YIG/Pt samples in a frequency range from 2 to 20 GHz. In bare YIG films, we determine a Gilbert damping constant of approximately alpha = 0.001. With an additional platinum layer on top of the YIG samples, the damping is significantly enhanced. The effective spin-mixing conductance extracted from the ferromagnetic resonance experiments is in agreement with that determined from independent electrically detected spin-pumping experiments.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FERROMAGNETIC-RESONANCE; FILMS; PD; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Jun 2019 08:26 |
| Last Modified: | 14 Jun 2019 08:26 |
| URI: | https://pred.uni-regensburg.de/id/eprint/4995 |
Actions (login required)
 |
View Item |
