Chauleau, J. -Y. and Bauer, H. G. and Koerner, H. S. and Stigloher, J. and Haertinger, M. and Woltersdorf, G. and Back, C. H. (2014) Self-consistent determination of the key spin-transfer torque parameters from spin-wave Doppler experiments. PHYSICAL REVIEW B, 89 (2): 020403. ISSN 1098-0121, 1550-235X
Full text not available from this repository.Abstract
Current-induced magnetization dynamics is governed by a subtle combination of damping, adiabatic, and nonadiabatic spin-transfer torques (STTs). A precise determination of these three key parameters is difficult since they have to be determined in the very same nanostructured sample. In this study, we experimentally determine the spin-tansfer torque parameters in a fully self-consistent approach by optically accessing current-induced spin-wave dynamics. Our technique allows a precise access to spin-wave characteristics and their current-induced changes, especially the change in decay length which carries the information about the nonadiabaticity. Accessing this quantity allows the implementation of an analytical model which leads to a direct and separate extraction of the three STT key parameters without resorting to micromagnetic simulations.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DOMAIN-WALL; MAGNETORESISTANCE; EXCHANGE; DYNAMICS; |
| 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: | 28 Nov 2019 10:30 |
| Last Modified: | 28 Nov 2019 10:30 |
| URI: | https://pred.uni-regensburg.de/id/eprint/10830 |
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