| Physical properties and phase diagram of NaFe1-xVxAs |
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| 作者姓名： | 代光阳 何鑫 李芷文 张昌玲 史鲁川 于润泽 望贤成 靳常青 |
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| 作者单位： | Institute of Physics;University of Chinese Academy of Sciences;Materials Research Laboratory at Songshan Lake |
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| 基金项目： | Project supported by the National Natural Science Foundation of China;the National Key Research and Development Program of China。 |
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| 摘 要： | We grew a series of NaFe1-xVx As(0 ≤ x ≤ 0.03) single crystals and performed the measurements of resistance,magnetic susceptibility, and specific heat to study the superconducting phase diagram by doping V into Na Fe As. Both the structural and the spin-density-wave(SDW) transitions are slightly suppressed by V-doping. While superconducting transition temperature is enhanced to the maximum value of 15 K when the optimal doping level x = 0.007 and then is suppressed rapidly with further V-doping, displaying a small superconducting dome. Our results suggest that V-impurities should act as strong magnetic scattering centers which cause the sharp suppression of superconductivity in NaFe1-xVx As.
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| 关 键 词： | iron based superconductor "111"type NaFeAs V doping phase diagram |
Physical properties and phase diagram of NaFe_(1-x)V_xAs |
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| Guang-Yang Dai,Xin He,Zhi-Wen Li,Chang-Ling Zhang,Lu-Chuan Shi,Run-Ze Yu,Xian-Cheng Wang,Chang-Qing Jin.Physical properties and phase diagram of NaFe1-xVxAs[J].Chinese Physics B,2021(1). |
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| Authors: | Guang-Yang Dai Xin He Zhi-Wen Li Chang-Ling Zhang Lu-Chuan Shi Run-Ze Yu Xian-Cheng Wang Chang-Qing Jin |
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| Affiliation: | (Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100190,China;Materials Research Laboratory at Songshan Lake,Dongguan 523808,China) |
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