Ln(3)FeGaQ(7): A new series of transition-metal rare-earth chalcogenides

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	Ln(3)FeGaQ(7): A new series of transition-metal rare-earth chalcogenides
	Yin, WL ; Wang, WD ; Kang, L ; Lin, ZS ; Feng, K ; Shi, YG ; Hao, WY ; Yao, JY ; Wu, YC
刊名	JOURNAL OF SOLID STATE CHEMISTRY
	2013
卷号	202 页码:269
关键词	Chalcogenides Synthesis Crystal structure Optical property Band structure
ISSN号	0022-4596
通讯作者	Yao, JY (reprint author), Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Funct Crystals & Laser Technol, Beijing 100190, Peoples R China.
中文摘要	A new series of transition-metal rare-earth chalcogenides, Ln(3)FeGaQ(7) (Ln=Nd, Sm, Gd, Dy, Q=S; Ln=Nd, Gd, Dy, Q=Se), have been synthesized by solid state reactions. They are isostructural and crystallize in the space group P6(3). They adopt a three-dimensional framework composed of LnQ(7) monocapped trigonal prisms with the interesting (1)(infinity) [FeS3](4-) chains and isolated GaQ(4) tetrahedra lying in two sets of channels in the framework. Magnetic susceptibility measurements on Ln(3)FeGaQ(7) (Ln=Gd, Dy; Q=S, Se) indicate that they are paramagnetic and obey the Curie-Weiss law. Based on the diffuse reflectance spectra, Ln(3)FeGaQ(7) (Ln=Gd, Dy; Q=S, Se) should have band gaps smaller than 0.5 eV. Electronic conductivity measurement on Dy3FeGaSe7 demonstrates semiconducting behavior with (sigma 300)=0.124 S/cm. The first-principles calculations were also performed to study the electronic structures of these compounds. (C) 2013 Elsevier Inc. All rights reserved.
资助信息	National Basic Research Project of China [2010CB630701]; National Natural Science Foundation of China [91122034, 21271178, 11274367]
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/311004/57165]
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	Yin, WL,Wang, WD,Kang, L,et al. Ln(3)FeGaQ(7): A new series of transition-metal rare-earth chalcogenides[J]. JOURNAL OF SOLID STATE CHEMISTRY,2013,202:269.
APA	Yin, WL.,Wang, WD.,Kang, L.,Lin, ZS.,Feng, K.,...&Wu, YC.(2013).Ln(3)FeGaQ(7): A new series of transition-metal rare-earth chalcogenides.JOURNAL OF SOLID STATE CHEMISTRY,202,269.
MLA	Yin, WL,et al."Ln(3)FeGaQ(7): A new series of transition-metal rare-earth chalcogenides".JOURNAL OF SOLID STATE CHEMISTRY 202(2013):269.