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@ARTICLE{Bergqvist:19584,
author = {Bergqvist, L. and Sato, K. and Katayama-Yoshida, H. and
Dederichs, P.H.},
title = {{C}omputational materials design for high-{T}(c)
({G}a,{M}n){A}s with {L}i codoping},
journal = {Physical review / B},
volume = {83},
number = {16},
issn = {1098-0121},
address = {College Park, Md.},
publisher = {APS},
reportid = {PreJuSER-19584},
pages = {165201},
year = {2011},
note = {L.B. acknowledges financial support from the European
Commission within the Marie Curie Actions under Contract No.
PERG-GA-2008-239411. K.S. and H.K.-Y. acknowledge the
financial support from the Grant-in-Aid for Scientific
Research for young researchers and on Innovative Areas
"Materials Design through Computics: Complex Correlation and
Non-Equilibrium Dynamics," the Global COE Program "Core
Research and Engineering of Advanced
Materials-Interdisciplinary Education Center for Materials
Science," and Strategic Japanese-German Cooperative Program
"Computational design and evaluation of spintronics
materials," JST.},
abstract = {Based on first-principles calculations and kinetic Monte
Carlo simulations, we design a realistic and practical
codoping technique for increasing the concentration of Mn
atoms in GaAs and realizing high Curie temperatures in (Ga,
Mn) As. We found that using codoping of Li interstitial
atoms during the crystal growth has two great advantages.
First, due to lower formation energy of Li interstitials
compared to Mn interstitials, Li prevents formation of
unwanted Mn interstitials. Second, Li interstitials can be
removed by using post-growth annealing at low temperatures.
This codoping method offers a general strategy to go far
beyond the solubility limit and it should be applicable also
to other diluted magnetic semiconductor systems.},
keywords = {J (WoSType)},
cin = {PGI-2},
ddc = {530},
cid = {I:(DE-Juel1)PGI-2-20110106},
pnm = {Grundlagen für zukünftige Informationstechnologien},
pid = {G:(DE-Juel1)FUEK412},
shelfmark = {Physics, Condensed Matter},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000289229600003},
doi = {10.1103/PhysRevB.83.165201},
url = {https://juser.fz-juelich.de/record/19584},
}