Aufgrund von Vorbereitungen auf eine neue Version von KOPS, können kommenden Montag und Dienstag keine Publikationen eingereicht werden. (Due to preparations for a new version of KOPS, no publications can be submitted next Monday and Tuesday.)
Type of Publication: | Journal article |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-45323 |
Author: | Misochko, Oleg Victor; Kaidashev, E. M.; Georgiev, Nikolai; Dekorsy, Thomas; Zakharchenko, Irina N. |
Year of publication: | 2003 |
Published in: | Journal of experimental and theoretical physics ; 97 (2003), 4. - pp. 788-793 |
DOI (citable link): | https://dx.doi.org/10.1134/1.1625069 |
Summary: |
The relaxation dynamics of charge carriers in an epitaxial La0.7Ca0.3MnO3 film was studied by the light reflection method with a femtosecond time resolution in a wide temperature range. The relaxation of time-resolved photoinduced reflections was shown to be two-component in the whole temperature range including the paramagnetic dielectric-ferromagnetic metal transition at T ≈ 150 160 K. The fast relaxation component had a maximum lifetime (τ ~ 500 ps) in the transition region, and its contribution to relaxation increased as temperature decreased. The lifetime of the slow component was minimum (τ ~ 15 fs) in the transition region. In addition, fast oscillations assigned to coherent phonons appeared in photoinduced responses at T < 200 K. The dephasing time of these oscillations increased as temperature decreased, whereas their frequency changed insignificantly.
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Subject (DDC): | 530 Physics |
Link to License: | Attribution-NonCommercial-NoDerivs 2.0 Generic |
MISOCHKO, Oleg Victor, E. M. KAIDASHEV, Nikolai GEORGIEV, Thomas DEKORSY, Irina N. ZAKHARCHENKO, 2003. A time-resolved optical study of the paramagnetic dielectric-ferromagnetic metal transition in La0.7Ca0.3MnO3. In: Journal of experimental and theoretical physics. 97(4), pp. 788-793. Available under: doi: 10.1134/1.1625069
@article{Misochko2003timer-9045, title={A time-resolved optical study of the paramagnetic dielectric-ferromagnetic metal transition in La0.7Ca0.3MnO3}, year={2003}, doi={10.1134/1.1625069}, number={4}, volume={97}, journal={Journal of experimental and theoretical physics}, pages={788--793}, author={Misochko, Oleg Victor and Kaidashev, E. M. and Georgiev, Nikolai and Dekorsy, Thomas and Zakharchenko, Irina N.} }
JETP_misochko_2003.pdf | 475 |