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Superconductivities and structural properties of ternary Ti–Zr–Ta alloys |
Wang Zhi-Wei(王秩伟), Jia Li(贾丽), Yang Huai-Xin(杨槐馨), Tian Huan-Fang(田焕芳), Shi Hong-Long(施洪龙), Wang Zhen(王臻), and Li Jian-Qi(李建奇)† |
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China |
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Abstract Superconductivities and structural properties of Ti-Zr-Ta ternary alloys are extensively investigated. The TiZrTa sample has a cubic structure (β -phase) and shows a sharp superconducting transition at a critical temperature (Tc) of about 7.3 K. In addition, two series of Ti-Zr-Ta alloys, with nominal compositions of Ti65-xZr35Tax and TixZr65-xTa35 respectively, are prepared, and their superconductivities and crystal structures change regularly with the chemical composition. Our experimental study also indicates that the annealing processing of this kind of material can cause the transition temperature to increase and the highest Tc is observed to be about 8.3 K in annealed samples.
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Received: 15 June 2011
Revised: 09 August 2011
Accepted manuscript online:
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PACS:
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74.70.Dd
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(Ternary, quaternary, and multinary compounds)
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74.25.-q
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(Properties of superconductors)
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74.62.-c
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(Transition temperature variations, phase diagrams)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10874227, 11074292, and 10904166). |
Cite this article:
Wang Zhi-Wei(王秩伟), Jia Li(贾丽), Yang Huai-Xin(杨槐馨), Tian Huan-Fang(田焕芳), Shi Hong-Long(施洪龙), Wang Zhen(王臻), and Li Jian-Qi(李建奇) Superconductivities and structural properties of ternary Ti–Zr–Ta alloys 2011 Chin. Phys. B 20 117402
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