Infrared spectrum and its implications for the electronic structure of the semiconducting iron selenide K0.83Fe1.53Se2

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	Infrared spectrum and its implications for the electronic structure of the semiconducting iron selenide K0.83Fe1.53Se2
	Chen, ZG ; Yuan, RH ; Dong, T ; Xu, G ; Shi, YG ; Zheng, P ; Luo, JL ; Guo, JG ; Chen, XL ; Wang, NL
刊名	PHYSICAL REVIEW B
	2011
卷号	83 期号:22
关键词	SUPERCONDUCTIVITY CS
ISSN号	1098-0121
通讯作者	Chen, ZG: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	We report an infrared spectroscopy study on K0.83Fe1.53Se2, a semiconducting parent compound of the 245 iron selenide superconductors. The major spectral features are found to be distinctly different from all other Fe-based superconducting systems. Our measurement revealed two peculiar spectral structures: a double-peak structure between 4000 and 6000 cm(-1) and abundant phonon modes-much more than expected for a 122 structure. We elaborate that those features could be naturally explained from the blocked antiferromagnetism due to the presence of Fe vacancy ordering as determined by recent neutron-diffraction experiments. The double peaks reflect the coexistence of ferromagnetic and antiferromagnetic couplings between the neighboring Fe sites.
收录类别	SCI
资助信息	NSFC; CAS; MOST
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/39967]
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	Chen, ZG,Yuan, RH,Dong, T,et al. Infrared spectrum and its implications for the electronic structure of the semiconducting iron selenide K0.83Fe1.53Se2[J]. PHYSICAL REVIEW B,2011,83(22).
APA	Chen, ZG.,Yuan, RH.,Dong, T.,Xu, G.,Shi, YG.,...&Wang, NL.(2011).Infrared spectrum and its implications for the electronic structure of the semiconducting iron selenide K0.83Fe1.53Se2.PHYSICAL REVIEW B,83(22).
MLA	Chen, ZG,et al."Infrared spectrum and its implications for the electronic structure of the semiconducting iron selenide K0.83Fe1.53Se2".PHYSICAL REVIEW B 83.22(2011).