期刊
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS
卷 40, 期 4A, 页码 L334-L336出版社
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/JJAP.40.L334
关键词
ab initio calculation; zinc oxide; diluted magnetic semiconductor; carrier-induced ferromagnetism; material design; electron doping
Detailed guidelines for controlling magnetic states in ZnO-based diluted magnetic semiconductors are given based on ab initio electronic structure calculations within the local spin density approximation using the Korringa-Kohn-Rostoker method. Effects of disorder were taken into account by the coherent potential approximation. It was found that the ferromagnetic state was stabilized by electron doping in the case of Fe, Co- or Ni-doped ZnO. From the view point of practical applications, it is possible to realize a high-Curie-temperature ferromagnet, because n-type ZnO is easily available.
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