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  • Title: Identifying the electronic character and role of the Mn states in the valence band of (Ga,Mn)As.
    Author: Fujii J, Salles BR, Sperl M, Ueda S, Kobata M, Kobayashi K, Yamashita Y, Torelli P, Utz M, Fadley CS, Gray AX, Braun J, Ebert H, Di Marco I, Eriksson O, Thunström P, Fecher GH, Stryhanyuk H, Ikenaga E, Minár J, Back CH, van der Laan G, Panaccione G.
    Journal: Phys Rev Lett; 2013 Aug 30; 111(9):097201. PubMed ID: 24033065.
    Abstract:
    We report high-resolution hard x-ray photoemission spectroscopy results on (Ga,Mn)As films as a function of Mn doping. Supported by theoretical calculations we identify, for both low (1%) and high (13%) Mn doping values, the electronic character of the states near the top of the valence band. Magnetization and temperature-dependent core-level photoemission spectra reveal how the delocalized character of the Mn states enables the bulk ferromagnetic properties of (Ga,Mn)As.
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