Substitution effect on the superconductivity in Mo3-xRexAl2C with β-Mn structure prepared by microwave method

• 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
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC,AND OPTICAL PROPERTIES
• 页码范围: 567-572
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/abfb5a

摘要

We report the microwave synthesis and the doping effect of Mo3-xRexAl2C (0 ≤ x ≤ 0.3) superconductor.Re dop-ing into Mo3Al2C results in a regular shrinkage of the lattice,marked by the linear decrease of lattice parameter a from 6.868(1) (A) (for Mo3Al2C) to 6.846(2) (A) (for Mo2.7Reo.3Al2C).Upon Re doping,Tc of Mo3-xRexAl2C first increases and then decreases,with the maximum Tc =9.14 K at the optimal doping level of x =0.09.Our report provides a con-venient method to synthesize Mo3 xRexAl2C within minutes,and also marks the first Re doping study with enhanced superconductivity on the non-centrosymmetric superconductor Mo3Al2C.