Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As

J. Fujii; M. Sperl; S. Ueda; K. Kobayashi; Y. Yamashita; M. Kobata; P. Torelli; F. Borgatti; M. Utz; C. S. Fadley; A. X. Gray; G. Monaco; C. H. Back; G. Van Der Laan; G. Panaccione

doi:10.1103/PhysRevLett.107.187203

Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As

J. Fujii, M. Sperl, S. Ueda, K. Kobayashi, Y. Yamashita, M. Kobata, P. Torelli, F. Borgatti, M. Utz, C. S. Fadley, A. X. Gray, G. Monaco, C. H. Back, G. Van Der Laan, G. Panaccione

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24 Scopus citations

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.

Original language	English
Article number	187203
Journal	Physical Review Letters
Volume	107
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.107.187203
State	Published - 27 Oct 2011
Externally published	Yes

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Fujii, J., Sperl, M., Ueda, S., Kobayashi, K., Yamashita, Y., Kobata, M., Torelli, P., Borgatti, F., Utz, M., Fadley, C. S., Gray, A. X., Monaco, G., Back, C. H., Van Der Laan, G., & Panaccione, G. (2011). Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As. Physical Review Letters, 107(18), Article 187203. https://doi.org/10.1103/PhysRevLett.107.187203

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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.",

author = "J. Fujii and M. Sperl and S. Ueda and K. Kobayashi and Y. Yamashita and M. Kobata and P. Torelli and F. Borgatti and M. Utz and Fadley, {C. S.} and Gray, {A. X.} and G. Monaco and Back, {C. H.} and {Van Der Laan}, G. and G. Panaccione",

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doi = "10.1103/PhysRevLett.107.187203",

language = "English",

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Fujii, J, Sperl, M, Ueda, S, Kobayashi, K, Yamashita, Y, Kobata, M, Torelli, P, Borgatti, F, Utz, M, Fadley, CS, Gray, AX, Monaco, G, Back, CH, Van Der Laan, G & Panaccione, G 2011, 'Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As', Physical Review Letters, vol. 107, no. 18, 187203. https://doi.org/10.1103/PhysRevLett.107.187203

TY - JOUR

T1 - Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As

AU - Fujii, J.

AU - Sperl, M.

AU - Ueda, S.

AU - Kobayashi, K.

AU - Yamashita, Y.

AU - Kobata, M.

AU - Torelli, P.

AU - Borgatti, F.

AU - Utz, M.

AU - Fadley, C. S.

AU - Gray, A. X.

AU - Monaco, G.

AU - Back, C. H.

AU - Van Der Laan, G.

AU - Panaccione, G.

PY - 2011/10/27

Y1 - 2011/10/27

N2 - 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.

AB - 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.

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U2 - 10.1103/PhysRevLett.107.187203

DO - 10.1103/PhysRevLett.107.187203

M3 - Article

AN - SCOPUS:80155165039

SN - 0031-9007

VL - 107

JO - Physical Review Letters

JF - Physical Review Letters

IS - 18

M1 - 187203

ER -

Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As

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