Pincelli, T. and Cucini, R. and Verna, A. and Borgatti, F. and Oura, M. and Tamasaku, K. and Osawa, H. and Lee, T-L and Schlueter, C. and Guenther, S. and Back, C. H. and Dell'Angela, M. and Ciprian, R. and Orgiani, Pasquale and Petrov, A. and Sirotti, F. and Dediu, V. A. and Bergenti, I and Graziosi, R. and Granozio, F. Miletto and Tanaka, Y. and Taguchi, M. and Daimon, H. and Fujii, J. and Rossi, G. and Panaccione, G. (2019) Transient quantum isolation and critical behavior in the magnetization dynamics of half-metallic manganites. PHYSICAL REVIEW B, 100 (4): 045118. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
We combine time-resolved pump-probe magneto-optical Kerr effect and photoelectron spectroscopy experiments supported by theoretical analysis to determine the relaxation dynamics of delocalized electrons in half-metallic ferromagnetic manganite La1-xSrxMnO3. We observe that the half-metallic character of La1-xSrxMnO3 determines the timescale of both the electronic phase transition and the quenching of magnetization, revealing a quantum isolation of the spin system in double-exchange ferromagnets extending up to hundreds of picoseconds. We demonstrate the use of time-resolved hard x-ray photoelectron spectroscopy as a unique tool to single out the evolution of strongly correlated electronic states across a second-order phase transition in a complex material.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SPIN-LATTICE-RELAXATION; POLARIZATION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 03 Apr 2020 05:40 |
| Last Modified: | 03 Apr 2020 05:40 |
| URI: | https://pred.uni-regensburg.de/id/eprint/26636 |
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