| Texto completo | |
| Autor(es): |
van Kooten, S. C. P.
;
Springholz, G.
;
Henriques, A. B.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW B; v. 105, n. 22, p. 5-pg., 2022-06-29. |
| Resumo | |
We uncovered the spin dynamics involved in the birth and growth of giant spin polarons in a magnetic semiconductor. For this purpose, we developed a measurement technique which provides direct access to the spin dynamics, irrespective of phonons and carriers involved in the process. Moreover, we solved the Landau-Lifshitz equation in the specific scenario of spin polarons; this solution fits our data excellently and demonstrates that the spin polaron growth slows down dramatically when the sample is cooled in the paramagnetic phase. Finally, temperature-dependent Monte Carlo simulations were performed; these are in excellent agreement with the observed slowdown, which demonstrates that fluctuations in the Weiss field play a decisive role in spin coherence generation induced by light in magnetic materials. (AU) | |
| Processo FAPESP: | 20/15570-0 - Coerência de spin via luz em semicondutores magnéticos |
| Beneficiário: | Andre Bohomoletz Henriques |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |