Structural and physical properties of undoped and nickel-doped BaFe2-xNixAs2 (x=0, 0.04) single crystals

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	Structural and physical properties of undoped and nickel-doped BaFe2-xNixAs2 (x=0, 0.04) single crystals
	Li, ZC ; Lu, W ; Dong, XL ; Zhou, F ; Zhao, ZX
刊名	CHINESE PHYSICS B
	2010
卷号	19 期号:8
关键词	SPIN-DENSITY-WAVE SUPERCONDUCTIVITY COEXISTENCE COMPOUND
ISSN号	1674-1056
通讯作者	Zhou, F (reprint author), Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, 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	State Key Development Program for Basic Research of China [2006CB601002]; National Natural Science Foundation of China [10734120, 10874211]
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/311004/53263]
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, ZC,Lu, W,Dong, XL,et al. Structural and physical properties of undoped and nickel-doped BaFe2-xNixAs2 (x=0, 0.04) single crystals[J]. CHINESE PHYSICS B,2010,19(8).
APA	Li, ZC,Lu, W,Dong, XL,Zhou, F,&Zhao, ZX.(2010).Structural and physical properties of undoped and nickel-doped BaFe2-xNixAs2 (x=0, 0.04) single crystals.CHINESE PHYSICS B,19(8).
MLA	Li, ZC,et al."Structural and physical properties of undoped and nickel-doped BaFe2-xNixAs2 (x=0, 0.04) single crystals".CHINESE PHYSICS B 19.8(2010).