Single crystal growth and characterizations of iron arsenide superconductor BaFe2-xNixAs2 (0.0 ≤ x ≤0.12)

doi:10.1088/1674-1056/19/2/026103

中国物理B ›› 2010, Vol. 19 ›› Issue (2): 26103-026103.doi: 10.1088/1674-1056/19/2/026103

Single crystal growth and characterizations of iron arsenide superconductor BaFe_2-xNi_xAs₂ (0.0 ≤ x ≤0.12)

李正才, 陆伟, 董晓莉, 周放, 赵忠贤

National Laboratory for Superconductivity, Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, China

收稿日期:2009-11-24 修回日期:2009-11-24 出版日期:2010-02-15 发布日期:2010-02-15
基金资助:
Project supported by the State Key Development Program for Basic Research of China (Grant No. 2006CB601002) and the National Natural Science Foundation of China (Grant No.~10734120).

Single crystal growth and characterizations of iron arsenide superconductor BaFe_2-xNi_xAs₂ (0.0 ≤ x ≤0.12)

Li Zheng-Cai(李正才), Lu Wei(陆伟), Dong Xiao-Li(董晓莉), Zhou Fang(周放)^†, and Zhao Zhong-Xian(赵忠贤)

National Laboratory for Superconductivity, Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, China

Received:2009-11-24 Revised:2009-11-24 Online:2010-02-15 Published:2010-02-15
Supported by:
Project supported by the State Key Development Program for Basic Research of China (Grant No. 2006CB601002) and the National Natural Science Foundation of China (Grant No. 10734120).

摘要/Abstract

摘要： A series of big single crystals of BaFeFe_2-xNi_xAs₂ have been prepared by the FeAs self-flux method, with nominal nickel doping x = 0--0.12. The dimensions of the cleaved crystals are over 10~mm along ab plane and ～ 2~mm in maximum along the c direction. The measurements of x-ray diffraction, electrical resistance and magnetic property are carried out on the crystals. For the undoped parent compound BaFe₂As₂, both resistance and magnetization data display an anomaly associated with spin density wave and/or structural phase transition, with the transition temperatures at ～ 138~K. For Ni-doped BaFe_2-xNi_xAs₂ crystals, the superconducting critical temperature T_c ranges from 4.3~K for x=0.06 sample to 20~K for the optimally doped x=0.10 crystal.

Abstract: A series of big single crystals of BaFeFe_2-xNi_xAs₂ have been prepared by the FeAs self-flux method, with nominal nickel doping x = 0--0.12. The dimensions of the cleaved crystals are over 10 mm along ab plane and ～2 mm in maximum along the c direction. The measurements of x-ray diffraction, electrical resistance and magnetic property are carried out on the crystals. For the undoped parent compound BaFe₂As₂, both resistance and magnetization data display an anomaly associated with spin density wave and/or structural phase transition, with the transition temperatures at ～138 K. For Ni-doped BaFe_2-xNi_xAs₂ crystals, the superconducting critical temperature T_c ranges from 4.3 K for x = 0.06 sample to 20 K for the optimally doped x = 0.10 crystal.

Key words: FeAs self-flux crystal growth, BaFe_2-xNi_xAs₂ single crystals, supercondutivity

中图分类号: (Magnetic properties including vortex structures and related phenomena)

74.25.Ha

74.62.Dh (Effects of crystal defects, doping and substitution) 81.10.Dn (Growth from solutions) 61.05.cp (X-ray diffraction)

李正才, 陆伟, 董晓莉, 周放, 赵忠贤. Single crystal growth and characterizations of iron arsenide superconductor BaFe_2-xNi_xAs₂ (0.0 ≤ x ≤0.12)[J]. 中国物理B, 2010, 19(2): 26103-026103.

Li Zheng-Cai(李正才), Lu Wei(陆伟), Dong Xiao-Li(董晓莉), Zhou Fang(周放), and Zhao Zhong-Xian(赵忠贤). Single crystal growth and characterizations of iron arsenide superconductor BaFe_2-xNi_xAs₂ (0.0 ≤ x ≤0.12)[J]. Chin. Phys. B, 2010, 19(2): 26103-026103.

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Single crystal growth and characterizations of iron arsenide superconductor BaFe_2-xNi_xAs₂ (0.0 ≤ x ≤0.12)

Single crystal growth and characterizations of iron arsenide superconductor BaFe_2-xNi_xAs₂ (0.0 ≤ x ≤0.12)

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