New diluted ferromagnetic semiconductor with Curie temperature up to 180 K and isostructural to the '122' iron-based superconductors

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	New diluted ferromagnetic semiconductor with Curie temperature up to 180 K and isostructural to the '122' iron-based superconductors
	Zhao, K ; Deng, Z ; Wang, XC ; Han, W ; Zhu, JL ; Li, X ; Liu, QQ ; Yu, RC ; Goko, T ; Frandsen, B ; Liu, L ; Ning, FL ; Uemura, YJ ; Dabkowska, H ; Luke, GM ; Luetkens, H ; Morenzoni, E ; Dunsiger, SR ; Senyshyn, A ; Boni, P ; Jin, CQ
刊名	NATURE COMMUNICATIONS
	2013
卷号	4
ISSN号	2041-1723
通讯作者	Uemura, YJ (reprint author), Columbia Univ, Dept Phys, 538 W 120th St, New York, NY 10027 USA.
中文摘要	Diluted magnetic semiconductors have received much attention due to their potential applications for spintronics devices. A prototypical system (Ga,Mn)As has been widely studied since the 1990s. The simultaneous spin and charge doping via hetero-valent (Ga3+, Mn2+) substitution, however, resulted in severely limited solubility without availability of bulk specimens. Here we report the synthesis of a new diluted magnetic semiconductor (Ba1-xKx)(Zn1-yMny)(2)As-2, which is isostructural to the 122 iron-based superconductors with the tetragonal ThCr2Si2 (122) structure. Holes are doped via (Ba2+, K1+) replacements, while spins via isovalent (Zn2+, Mn2+) substitutions. Bulk samples with x = 0.1 - 0.3 and y = 0.05 - 0.15 exhibit ferromagnetic order with T-C up to 180 K, which is comparable to the highest T-C for (Ga, Mn) As and significantly enhanced from T-C up to 50 K of the '111'-based Li(Zn,Mn)As. Moreover, ferromagnetic (Ba,K)(Zn,Mn)(2)As-2 shares the same 122 crystal structure with semiconducting BaZn2As2, antiferromagnetic BaMn2As2 and superconducting (Ba,K)Fe2As2, which makes them promising for the development of multi-layer functional devices.
资助信息	Chinese NSF at IOP; Ministry of Science and Technology (MOST) at IOP; National Basic Research Program of China (973 Program) at IOP [2011CBA00103]; National Basic Research Program of China (973 Program) at Zhejiang; US NSF PIRE [OISE-0968226, DMR- 1105961]; JAEA Reimei project at IOP; JAEA Reimei project at Columbia; JAEA Reimei project at PSI; JAEA Reimei project at McMaster; JAEA Reimei project TU Munich; NSERC at McMaster; CIFAR at McMaster
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57245]
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,Deng, Z,Wang, XC,et al. New diluted ferromagnetic semiconductor with Curie temperature up to 180 K and isostructural to the '122' iron-based superconductors[J]. NATURE COMMUNICATIONS,2013,4.
APA	Zhao, K.,Deng, Z.,Wang, XC.,Han, W.,Zhu, JL.,...&Jin, CQ.(2013).New diluted ferromagnetic semiconductor with Curie temperature up to 180 K and isostructural to the '122' iron-based superconductors.NATURE COMMUNICATIONS,4.
MLA	Zhao, K,et al."New diluted ferromagnetic semiconductor with Curie temperature up to 180 K and isostructural to the '122' iron-based superconductors".NATURE COMMUNICATIONS 4(2013).