PMID: 15245193Jul 13, 2004Paper

Picosecond dynamics of the photoinduced spin polarization in epitaxial (Ga,Mn)as films

Physical Review Letters
A V KimelTh Rasing

Abstract

Static and time-resolved magneto-optical spectra of the ferromagnetic semiconductor (Ga,Mn)As show that a pulsed photoexcitation with a fluence of 10 microJ/cm(2) is equivalent to the application of an external magnetic field of about 1 mT, which relaxes with a decay time of 30 ps. This relaxation is attributed to the spin relaxation of electrons in the conduction band and is found to be not affected by interactions with Mn ions.

References

Sep 16, 2000·Physical Review Letters·B Koopmans de Jonge WJ
Jan 5, 2001·Nature·H OhnoK Ohtani
Oct 9, 2002·Physical Review Letters·D J Hilton, C L Tang
Apr 12, 2003·Physical Review Letters·H X TangM L Roukes
May 7, 2003·Physical Review Letters·U WelpT Wojtowicz

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Citations

Feb 21, 2006·Physical Review Letters·J ChovanI E Perakis
Apr 7, 2021·Optics Express·Yasuyoshi MitsumoriKeiichi Edamatsu

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