Guenther, Stefan and Spezzani, Carlo and Ciprian, Roberta and Grazioli, Cesare and Ressel, Barbara and Coreno, Marcello and Poletto, Luca and Miotti, Paolo and Sacchi, Maurizio and Panaccione, Giancarlo and Uhlir, Vojtech and Fullerton, Eric E. and De Ninno, Giovanni and Back, Christian H. (2014) Testing spin-flip scattering as a possible mechanism of ultrafast demagnetization in ordered magnetic alloys. PHYSICAL REVIEW B, 90 (18): 180407. ISSN 2469-9950, 2469-9969
Full text not available from this repository.Abstract
We use element-resolved IR-pump/extreme ultraviolet-probe experiments to disentangle the ultrafast interplay of the magnetic sublattices of an ordered crystalline magnetic alloy. As a paradigmatic example, we investigate the case of the FeRh alloy, which shows a delayed response for the different components. Furthermore, a detailed time-resolved magneto-optic study shows that the data can be analyzed by only assuming Elliot-Yafet-like scattering, as the underlying mechanism for ultrafast demagnetization, resulting in an unexpected nonmonotonic dependence of the spin-flip rate, as a function of quenching.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ANGULAR-MOMENTUM; GENERATION; EXCITATION; ELECTRON; DYNAMICS; REVERSAL; PULSES; METALS; NI; |
| 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: | 08 Aug 2019 07:17 |
| Last Modified: | 08 Aug 2019 07:17 |
| URI: | https://pred.uni-regensburg.de/id/eprint/9192 |
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