TY - JOUR
AU - Fujii, H.
AU - Sato, K.
AU - Bergqvist, L.
AU - Dederichs, P.H.
AU - Katayama-Yoshida, H.
TI - Interstitial Donor Codoping Method in (Ga,Mn)As to Increase Solubility of Mn and Curie Temperature
JO - Applied physics express
VL - 4
SN - 1882-0778
CY - Tokyo
PB - ¯Oy¯o Butsuri-Gakkai
M1 - PreJuSER-19583
SP - 043003
PY - 2011
N1 - The authors would like to express their gratitude for the financial support from a Grant-in-Aid for Scientific Research for young researchers and on Innovative Areas "Materials Design through Computics: Complex Correlation and Non-Equilibrium Dynamics", a Global Center of Excellence program "Core Research and Engineering of Advanced Materials-Interdisciplinary Education Center for Materials Science", and the Japan Science and Technology Agency Strategic Japanese-German Cooperative Program "Computational design and evaluation of spintronics materials".
AB - Based on first principles calculations, we propose a solubility control method of magnetic impurities in dilute magnetic semiconductors (DMSs). The low solubility of Mn in (Ga, Mn)As is experimentally and theoretically known. We show that donor atoms, such as Li, introduced at the interstitial sites in GaAs enhance the solubility of Mn. As a result, Mn can be doped to more than 20% in GaAs in the thermal equilibrium condition. The same effect can be seen when we dope Mn in GaAs with other interstitial donors, such as H, Na, K, Be, Mg, Ca, Cu, and Ag. (C) 2011 The Japan Society of Applied Physics
KW - J (WoSType)
LB - PUB:(DE-HGF)16
UR - <Go to ISI:>//WOS:000289344800012
DO - DOI:10.1143/APEX.4.043003
UR - https://juser.fz-juelich.de/record/19583
ER -