(Ca,Na)(Zn,Mn)(2)As-2: A new spin and charge doping decoupled diluted ferromagnetic semiconductor

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	(Ca,Na)(Zn,Mn)(2)As-2: A new spin and charge doping decoupled diluted ferromagnetic semiconductor
	Zhao, K ; Chen, BJ ; Deng, Z ; Han, W ; Zhao, GQ ; Zhu, JL ; Liu, QQ ; Wang, XC ; Frandsen, B ; Liu, L ; Cheung, S ; Ning, FL ; Munsie, TJS ; Medina, T ; Luke, GM ; Carlo, JP ; Munevar, J ; Zhang, GM ; Uemura, YJ ; Jin, CQ
刊名	JOURNAL OF APPLIED PHYSICS
	2014
卷号	116 期号:16
ISSN号	0021-8979
通讯作者	Jin, CQ (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China.
中文摘要	Here, we report the successful synthesis of a spin-and charge-decoupled diluted magnetic semiconductor (DMS) (Ca,Na)(Zn,Mn)(2)As-2, crystallizing into the hexagonal CaAl2Si2 structure. The compound shows a ferromagnetic transition with a Curie temperature up to 33 K with 10% Na doping, which gives rise to carrier density of n(p) similar to 10(20) cm(-3). The new DMS is a soft magnetic material with H-C < 400 Oe. The anomalous Hall effect is observed below the ferromagnetic ordering temperature. With increasing Mn doping, ferromagnetic order is accompanied by an interaction between the local spin and mobile charge, giving rise to a minimum in resistivity at low temperatures and localizing the conduction electrons. The system provides an ideal platform for studying the interaction of the local spins and conduction electrons. (C) 2014 AIP Publishing LLC.
资助信息	NSF; MOST of China; US NSF PIRE (Partnership for International Research and Education) [OISE-0968226, DMR-1105961]; JAEA Reimei Project at IOP, Columbia; PSI; McMaster; TU Munich; NSERC; CIFAR at McMaster
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59135]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhao, K,Chen, BJ,Deng, Z,et al. (Ca,Na)(Zn,Mn)(2)As-2: A new spin and charge doping decoupled diluted ferromagnetic semiconductor[J]. JOURNAL OF APPLIED PHYSICS,2014,116(16).
APA	Zhao, K.,Chen, BJ.,Deng, Z.,Han, W.,Zhao, GQ.,...&Jin, CQ.(2014).(Ca,Na)(Zn,Mn)(2)As-2: A new spin and charge doping decoupled diluted ferromagnetic semiconductor.JOURNAL OF APPLIED PHYSICS,116(16).
MLA	Zhao, K,et al."(Ca,Na)(Zn,Mn)(2)As-2: A new spin and charge doping decoupled diluted ferromagnetic semiconductor".JOURNAL OF APPLIED PHYSICS 116.16(2014).