Superconductivity in (LuC)2(Ni2B2) and (LuC)(Ni2B2)

L. Gao, X. D. Qiu, Y. Cao, R. L. Meng, Y. Y. Sun, Y. Y. Xue, C. W. Chu

研究成果: Article同行評審

38 引文 斯高帕斯(Scopus)

摘要

We have studied (LuC)2(Ni2B2) and (LuC)(Ni2B2) at ambient and high pressures. Superconductivity was discovered in (LuC)2(Ni2B2) at 2.9 K. Pressure was found to suppress both the electrical resistivity and the superconducting transition temperature rapidly for (LuC)2(Ni2B2) but only slightly for (LuC)(Ni2B2), in spite of their similar chemical-bonding behavior. The observations can be understood in terms of the smaller density of states at the Fermi surface and the greater pressure-induced band broadening of (LuC)2(Ni2B2) than (LuC)(Ni2B2).

原文English
頁(從 - 到)9445-9448
頁數4
期刊Physical Review B
50
發行號13
DOIs
出版狀態Published - 1994

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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