摘要
We report the microwave synthesis and the doping effect of Mo_(3-)xRe_xAl_(2)C(0≤x≤0.3)superconductor.Re doping into Mo_(3)Al_(2)C results in a regular shrinkage of the lattice,marked by the linear decrease of lattice parameter a from6.868(1)A(for Mo_(3)Al_(2)C)to 6.846(2)A(for Mo_(2.7)Re_(0.3)Al_(2)C).Upon Re doping,T_(c)of Mo_(3-x)Re_xAl_(2)C first increases and then decreases,with the maximum T_(c)=9.14 K at the optimal doping level of x=0.09.Our report provides a convenient method to synthesize Mo_(3-)xRe_xAl_(2)C within minutes,and also marks the first Re doping study with enhanced superconductivity on the non-centrosymmetric superconductor Mo_(3)Al_(2)C.
作者
Jun-Nan Sun
Bin-Bin Ruan
Meng-Hu Zhou
Yin Chen
Qing-Song Yang
Lei Shan
Ming-Wei Ma
Gen-Fu Chen
Zhi-An Ren
孙俊男;阮彬彬;周孟虎;陈银;杨清松;单磊;马明伟;陈根富;任治安(Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education,Institutes of Physical Science and Information Technology,Anhui University,Hefei 230601,China;Institute of Physics and Beijing National Laboratory for Condensed Matter Physics,Chinese Academy of Sciences,Beijing 100190,China;Songshan Lake Materials Laboratory,Dongguan 523808,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China)
基金
the National Key Research and Development of China(Grant Nos.2018YFA0704200 and 2016YFA0300301)
the National Natural Science Foundation of China(Grant Nos.12074414 and 11774402)
the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDB25000000)。
