T_c-Enhanced Codoping Method for GaAs-based Dilute Magnetic Semiconductors

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dc.creatorDinh, Van An
dc.creatorSato, K.
dc.creatorKatayama-Yoshida, H.
dc.date2003-11-06
dc.date.accessioned2026-07-07T08:54:23Z
dc.date.available2026-07-07T08:54:23Z
dc.descriptionBased on ab initio calculations of Ga_{1-x}Mn_xN_yAs_{1-y} and Ga_{1-x}Mn_xC_yAs_{1-y}, we propose a new codoping method to enhance the Curie temperature T_c of diluted magnetic semiconductors. The solubility of Mn can be increased up to high concentration by the codoping of N or C to reduce the lattice and volume expansion caused by Mn doping. It is found that the impurity band of the majority spin is strongly broadened and pushed up into the higher energy region due to the strong p-d hybridization caused by the codoping, and the T_c becomes higher than the room temperature at x>0.06.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0311131
dc.identifierhttp://arxiv.org/abs/cond-mat/0311131
dc.identifierJpn. J. Appl. Phys. Part 2, Vol. 42 (2003) pp. L888-891
dc.identifierdoi:10.1143/JJAP.42.L888
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/145911
dc.subjectMaterials Science
dc.subjectDisordered Systems and Neural Networks
dc.titleT_c-Enhanced Codoping Method for GaAs-based Dilute Magnetic Semiconductors
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