μSR investigation of a new diluted magnetic semiconductor Li(Zn,Mn,Cu)As with Mn and Cu codoping at the same Zn sites.
作者： S L Guo , Y Zhao , H Y Man , C Ding , X Gong
DOI: 10.1088/0953-8984/28/36/366001
关键词:
摘要: We report the successful synthesis and characterization of a new type I-II-V bulk form diluted magnetic semiconductor (DMS) Li(Zn,Mn,Cu)As, in which charge spin doping are decoupled via (Cu,Zn) (Mn,Zn) substitution at same Zn sites. Ferromagnetic transition temperature up to ∼33 K has been observed with coercive field ∼40 Oe for 12.5% level. μSR measurements confirmed that volume fraction reaches nearly 100% 2 K, mechanism responsible ferromagnetic interaction this system is as other DMSs.
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