Superconductivities and structural properties of ternary Ti–Zr–Ta alloys

doi:10.1088/1674-1056/20/11/117402

中国物理B ›› 2011, Vol. 20 ›› Issue (11): 117402-117402.doi: 10.1088/1674-1056/20/11/117402

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Superconductivities and structural properties of ternary Ti–Zr–Ta alloys

王秩伟, 贾丽, 杨槐馨, 田焕芳, 施洪龙, 王臻, 李建奇

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

收稿日期:2011-06-15 修回日期:2011-08-09 出版日期:2011-11-15 发布日期:2011-11-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10874227, 11074292, and 10904166).

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

Received:2011-06-15 Revised:2011-08-09 Online:2011-11-15 Published:2011-11-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10874227, 11074292, and 10904166).

摘要/Abstract

摘要： 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 (T_c) of about 7.3 K. In addition, two series of Ti-Zr-Ta alloys, with nominal compositions of Ti_65-xZr₃₅Ta_x and Ti_xZr_65-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 T_c is observed to be about 8.3 K in annealed samples.

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 (T_c) of about 7.3 K. In addition, two series of Ti-Zr-Ta alloys, with nominal compositions of Ti_65-xZr₃₅Ta_x and Ti_xZr_65-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 T_c is observed to be about 8.3 K in annealed samples.

Key words: Ti-Zr-Ta alloys, superconductivity, crystal structure, X-ray diffraction

中图分类号: (Ternary, quaternary, and multinary compounds)

74.70.Dd

74.25.-q (Properties of superconductors) 74.62.-c (Transition temperature variations, phase diagrams)

王秩伟, 贾丽, 杨槐馨, 田焕芳, 施洪龙, 王臻, 李建奇. Superconductivities and structural properties of ternary Ti–Zr–Ta alloys[J]. 中国物理B, 2011, 20(11): 117402-117402.

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[J]. Chin. Phys. B, 2011, 20(11): 117402-117402.

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Superconductivities and structural properties of ternary Ti–Zr–Ta alloys

Superconductivities and structural properties of ternary Ti–Zr–Ta alloys

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