Observation of lateral long range order in superconducting FeTe thin films

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	Observation of lateral long range order in superconducting FeTe thin films
	Li, WY ; Han, Y ; Wang, HH ; Cao, LX ; Jia, QJ ; Chen, Y ; Jiang, XM ; Dong, C ; Xu, B ; Zhao, BR
刊名	CHINESE PHYSICS B
	2010
卷号	19 期号:8
关键词	2 LENGTH SCALES X-RAY-SCATTERING CRITICAL FLUCTUATIONS NEUTRON-SCATTERING SRTIO3 PHASE ORIGIN
ISSN号	1674-1056
通讯作者	Cao, LX (reprint author), Chinese Acad Sci, Natl Lab Superconduct, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	Single crystals of undoped and nickel-doped BaFe2-xNixAs2 (x = 0, 0.04) have been grown by FeAs self-flux method. The maximum dimension of the crystal is as large as similar to 1 cm along ab plane. The crystalline topography of a cleaved crystal surface is examined by scanning electron microscope (SEM). By x-ray powder diffraction (XRD) experiments using pure silicon as an internal standard, precise unit cell parameters (tetragonal at room temperature) are determined: a = 3.9606(4) angstrom (1 angstrom=0.1 nm), c = 13.015(2) angstrom for BaFe1.96Ni0.04As2 and a = 3.9590(5) angstrom, c = 13.024(1) angstrom for BaFe2As2. DC magnetization and transport measurements are performed to check superconducting transition (T-c = 15 K for x = 0.04) and other subtle anomalies. For BaFe1.96Ni0.04As2 crystal, the resistance curve at normal state shows two distinct anomalies associated with spin and structure transitions, and its magnetization data above 91 K exhibit a linear temperature dependence clue to spin density wave (SDW) instability.
收录类别	SCI
资助信息	National Basic Research Program of China [2006CB921107, 2010CB630704]; National Natural Science Foundation of China [10774165]
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/311004/50155]
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	Li, WY,Han, Y,Wang, HH,et al. Observation of lateral long range order in superconducting FeTe thin films[J]. CHINESE PHYSICS B,2010,19(8).
APA	Li, WY.,Han, Y.,Wang, HH.,Cao, LX.,Jia, QJ.,...&Zhao, BR.(2010).Observation of lateral long range order in superconducting FeTe thin films.CHINESE PHYSICS B,19(8).
MLA	Li, WY,et al."Observation of lateral long range order in superconducting FeTe thin films".CHINESE PHYSICS B 19.8(2010).