TY - JOUR
T1 - Electronic and magnetoresistive properties of MnAs(0 0 0 1)/GaAs(1 1 1) heterostructures
AU - Narita, Kenji
AU - Shirai, Masafumi
N1 - Funding Information:
We are grateful to A.T. Paxton, M. van Schilfgaarde and M. Methfessel for providing us with their LMTO program package. This work is partly supported by a Grant-in-Aid for Scientific Research on Priority Area “Spin Controlled Semiconductor Nanostructures” (No. 09244103) provided by the Ministry of Education, Science, Sports and Culture, Japan, and a Grant-in-Aid for Scientific Research (C) (No. 12650312) provided by Japan Society for the Promotion of Science.
PY - 2001/5
Y1 - 2001/5
N2 - Electronic band-structure calculations are carried out for the MnAs(0 0 0 1)/GaAs(1 1 1) multilayers by using the linearized muffin-tin-orbital method within the atomic sphere approximation. The exchange splitting of Mn 3d states between spin-up and spin-down bands as well as the magnitude of local magnetic moment of Mn atoms are reduced remarkably for the Mn sites near the heterointerface compared with those in the bulk of MnAs. On the other hand, the spin-polarization at the Fermi level is enhanced for the MnAs monolayers near the heterointerface.
AB - Electronic band-structure calculations are carried out for the MnAs(0 0 0 1)/GaAs(1 1 1) multilayers by using the linearized muffin-tin-orbital method within the atomic sphere approximation. The exchange splitting of Mn 3d states between spin-up and spin-down bands as well as the magnitude of local magnetic moment of Mn atoms are reduced remarkably for the Mn sites near the heterointerface compared with those in the bulk of MnAs. On the other hand, the spin-polarization at the Fermi level is enhanced for the MnAs monolayers near the heterointerface.
KW - Electronic band-structure calculations
KW - Ferromagnet/semiconductor heterostructure
KW - Tunneling magnetoresistance
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U2 - 10.1016/S1386-9477(01)00132-1
DO - 10.1016/S1386-9477(01)00132-1
M3 - Article
AN - SCOPUS:0035335409
SN - 1386-9477
VL - 10
SP - 433
EP - 436
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
IS - 1-3
ER -