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ID 19358
file
creator
Okabayashi, Jun
Rader, Oliver
Mizokawa, Takashi
Fujimori, Atsushi
Hayashi, Toshiaki
Tanaka, Masaaki
abstract
We have studied the electronic structure of Mn impurities in GaAs by Mn 2p core-level photoemission spectroscopy. From cluster-model analysis assuming the neutral (Mn3+) or negatively ionized (Mn2+) ground state, electronic structure parameters have been obtained. In either case, the Mn d electron number is evaluated to be ∼5 using the obtained parameters, meaning that the neutral Mn3+ impurity, if it exists, consists of the Mn 3d5 configuration and a valence hole bound to it through p-d hybridization and/or Coulomb interaction. We discuss the exchange interaction between the Mn local spin and the valence hole as well as the stability of the neutral impurity against the ionization of the valence hole.
journal title
Physical Review B - Condensed Matter and Materials Physics
volume
Volume 58
issue
Issue 8
start page
R4211
end page
R4214
date of issued
1998-08-15
publisher
American Physical Society
issn
0163-1829
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 1998 The American Physical Society.
relation url
department
Graduate School of Science