TY  - JOUR
A1  - Rader, Oliver
A1  - Fauth, K.
A1  - Gould, C.
A1  - Ruster, C.
A1  - Schott, G. M.
A1  - Schmidt, G.
A1  - Brunner, K.
A1  - Molenkamp, Laurens W.
A1  - Schutz, G.
A1  - Kronast, F.
A1  - Durr, H. A.
A1  - Eberhardt, W.
A1  - Gudat, Wolfgang
T1  - Identification of extrinsic Mn contributions in Ga1-xMnxAs by field-dependent magnetic circular X-ray dichroism
N2  - We combine sensitivity to atomic number, chemical shifts, probing depth, and magnetic order in a field- dependent magnetic circular X-ray dichroism study at the Mn L-edge of the diluted ferromagnetic semiconductor Ga1-xMnxAs and observe different Mn constituents: ferromagnetic Mn with an n(d) > 5 lineshape and paramagnetic Mn with distinct n(d) = 5 lineshape. The paramagnetic Mn is assigned to interstitials with surface segregation tendency. (c) 2005 Elsevier B.V. All rights reserved
Y1  - 2005
SN  - 0368-2048
ER  -