Structural Phase Separation in K0.8Fe1.6+xSe2 Superconductors

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	Structural Phase Separation in K0.8Fe1.6+xSe2 Superconductors
	Wang, ZW ; Wang, Z ; Song, YJ ; Ma, C ; Cai, Y ; Chen, Z ; Tian, HF ; Yang, HX ; Chen, GF ; Li, JQ
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2012
卷号	116 期号:33 页码:17847
ISSN号	1932-7447
通讯作者	Li, JQ (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	Structural investigations on the K0.8Fe1.6+xSe2 superconducting materials have revealed microstripes arising from phase separation. Two coexisting structural phases can be characterized by modulations of q(1) = 1/5[3a* + b], the antiferromagnetic phase K0.8Fe1.6Se2, and q(2) = 1/2[a + b*], the superconducting phase KyFe2Se2, respectively. These stripe patterns also show visible correlation with the anisotropic assembly of superconducting particles along the [110] and [1 (1) over bar0] directions. In addition to the notable stripe structures, a nanoscale phase separation also appears in the present superconducting system as clearly observed by high resolution transmission electron microscopy. Certain nanoscale structural features in this heterogeneous system can be qualitatively understood by the percolation scenario.
收录类别	SCI
资助信息	National Science Foundation of China [10874227, 90922001, 10874214, 11074292, 10904166]; Knowledge Innovation Project of the Chinese Academy of Sciences; 973 project of the Ministry of Science and Technology of China; 863 project of the Ministry of Science and Technology of China
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/53323]
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	Wang, ZW,Wang, Z,Song, YJ,et al. Structural Phase Separation in K0.8Fe1.6+xSe2 Superconductors[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2012,116(33):17847.
APA	Wang, ZW.,Wang, Z.,Song, YJ.,Ma, C.,Cai, Y.,...&Li, JQ.(2012).Structural Phase Separation in K0.8Fe1.6+xSe2 Superconductors.JOURNAL OF PHYSICAL CHEMISTRY C,116(33),17847.
MLA	Wang, ZW,et al."Structural Phase Separation in K0.8Fe1.6+xSe2 Superconductors".JOURNAL OF PHYSICAL CHEMISTRY C 116.33(2012):17847.