Počet záznamů: 1

Spin polarization of (Ga,Mn)As measured by Andreev spectroscopy: the role of spin-active scattering

  1. 1.
    0366889 - FZU-D 2012 RIV US eng J - Článek v odborném periodiku
    Piano, S. - Grein, R. - Mellor, C.J. - Výborný, Karel - Campion, R. - Wang, M. - Eschrig, M. - Gallagher, B. L.
    Spin polarization of (Ga,Mn)As measured by Andreev spectroscopy: the role of spin-active scattering.
    Physical Review. B. Roč. 83, č. 8 (2011), 081305/1-081305/4 ISSN 1098-0121
    Grant CEP: GA AV ČR KJB100100802; GA MŠk(CZ) 7E08087
    GRANT EU: European Commission(XE) 214499 - NAMASTE; European Commission(XE) 237375 - SemiSpinNano
    Grant ostatní: AVČR(CZ) Premium Academiae
    Výzkumný záměr: CEZ:AV0Z10100521
    Klíčová slova: Andreev spectroscopy * magnetic semiconductors
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 3.691, rok: 2011

    We investigate the spin polarization of the ferromagnetic semiconductor (Ga,Mn)As by point-contact Andreev reflection spectroscopy. We find a transport polarization around 57%, in considerably better agreement with the k.p kinetic-exchange model of (Ga,Mn)As, than the significantly larger estimates inferred from the BTK model.
    Trvalý link: http://hdl.handle.net/11104/0201724