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Optically induced magnetic polarons in EuTe

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Author(s):
Henriques, A. B. ; Abramof, E. ; Rappl, P. H. O. ; Galgano, G. D. ; Ihn, T ; Rossler, C ; Kozikov, A
Total Authors: 7
Document type: Journal article
Source: PHYSICS OF SEMICONDUCTORS; v. 1566, p. 2-pg., 2013-01-01.
Abstract

Direct measurements of the photoinduced magnetization in EuTe, using a two color pump-and-probe technique, are presented. The photoinduced effect was pumped using photons of above-the-bandgap energy, and detected by the Faraday rotation of a probe beam of energy below-the-bandgap. The photoinduced Faraday rotation changes sign, as expected from our model for the optically induced magnetic polaron. The EuTe spin-flop transition at low fields is also detected as a sharp step in the photoinduced Faraday rotation, and its observation provides additional supports for the photoinduced polaron model. (AU)

FAPESP's process: 10/10452-8 - Multiple harmonic spectroscopy, spin orientation and instantaneous magnetization using light
Grantee:Andre Bohomoletz Henriques
Support Opportunities: Regular Research Grants