Electronic structures and the estimated Curie temperatures of (Ga1−yIny)1−xMnxAs
- Resource Type
- Authors
- K. Miura; S. Imanaga; M. Iwasawa; T. Ami
- Source
- Applied Physics Letters. 83:5491-5493
- Subject
- chemistry.chemical_compound
Spin glass
Physics and Astronomy (miscellaneous)
chemistry
Ferromagnetism
Condensed matter physics
Curie
Curie temperature
Coherent potential approximation
Magnetic semiconductor
Electronic density of states
Gallium arsenide
- Language
- ISSN
- 1077-3118
0003-6951
The electronic structures of (Ga1−yIny)1−xMnxAs have been investigated using the Korringa, Kohn and Rostoker (KKR) method with the coherent potential approximation (CPA). The estimated Curie temperature (TC) of Ga1−xMnxAs is higher than that of (Ga0.5In0.5)1−xMnxAs and In1−xMnxAs when x≲0.10. On the other hand, the estimated TC of Ga1−xMnxAs saturates with an increase of x when x≳0.05, but that of (Ga0.5In0.5)1−xMnxAs and In1−xMnxAs does not saturate even when x>0.10. These results are in good agreement with the previous experimental results. Our calculated results predict that the TC of (Ga0.5In0.5)1−xMnxAs and In1−xMnxAs will be higher than that of Ga1−xMnxAs when x≳0.10.