title: Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As.
abstract: We report x-ray photoemission spectroscopy results on (Ga,Mn)As films as a function of both temperature and Mn doping. Analysis of Mn 2p core level spectra reveals the presence of a distinct electronic screening channel in the bulk, hitherto undetected in more surface sensitive analysis. Comparison with model calculations identifies the character of the Mn 3d electronic states and clarifies the role, and the difference between surface and bulk, of hybridization in mediating the ferromagnetic coupling in (Ga,Mn)As.
authors: CNR Istituto Officina dei Materiali (IOM), Laboratorio TASC, S.S.14, Km 163.5, I-34149 Trieste, Italy.
authors: J
authors: J
authors: Fujii
authors: M
authors: M
authors: Sperl
authors: S
authors: S
authors: Ueda
authors: K
authors: K
authors: Kobayashi
authors: Y
authors: Y
authors: Yamashita
authors: M
authors: M
authors: Kobata
authors: P
authors: P
authors: Torelli
authors: F
authors: F
authors: Borgatti
authors: M
authors: M
authors: Utz
authors: C S
authors: CS
authors: Fadley
authors: A X
authors: AX
authors: Gray
authors: G
authors: G
authors: Monaco
authors: C H
authors: CH
authors: Back
authors: G
authors: G
authors: van der Laan
authors: G
authors: G
authors: Panaccione