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Spin noise in two-dimensional electron gases


The study of the spin noise in semiconductors is an intense new research topic within the field of spintronics - a very promising line of the microelectronics research that can lead to important practical applications. While measurements in bulk and quantum dots have been recently reported, the study of two-dimensional electron gases in quantum wells is still open. We propose a collaborative effort on this topic using the large experience of both groups in such systems [see, e.g., VS et al., Nature Phys. 1,31 (2005), FGGH et al., PRB 88, 161305R (2013)], and a very new ultrafast method developed in Michigan [APL 107, 182102 (2015)]. The current FAPESP grant in Sao Paulo, focused in the generation of spin currents, will be also extended towards the investigation of noise and the dynamic nuclear polarization [VS et al., PRL 112, 056601 (2014)] in the current-induced electron spin polarization [VS et al., PRB 90, 085122 (2014), FGGH et al., PRB 90, 041302R (2014)]. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
KAWAHALA, N. M.; MORAES, F. C. D.; GUSEV, G. M.; BAKAROV, A. K.; HERNANDEZ, F. G. G.. Experimental analysis of the spin-orbit coupling dependence on the drift velocity of a spin packet. AIP ADVANCES, v. 10, n. 6, . (14/25981-7, 16/50018-1, 09/15007-5, 15/16191-5, 13/03450-7, 18/06142-5)
HERNANDEZ, F. G. G.; FERREIRA, G. J.; LUENGO-KOVAC, M.; SIH, V; KAWAHALA, N. M.; GUSEV, G. M.; BAKAROV, A. K.. Electrical control of spin relaxation anisotropy during drift transport in a two-dimensional electron gas. Physical Review B, v. 102, n. 12, . (16/50018-1, 18/06142-5, 15/16191-5)

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