Superconductivity in new quaternary borocarbide system R–Re–B–C (R=Y, Gd, Tb and Lu) |
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| Authors: | Aravind D Chinchure R Nagarajan L C Gupta |
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| Institution: | Tata Institute of Fundamental Research, Mumbai 400 005, India |
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| Abstract: | We report here our observation of superconductivity in a new quaternary borocarbide system R–Re–B–C (R=Y, Gd, Tb and Lu). Samples of the nominal compositions RReBC exhibit superconductivity with Tc≈6 K in LuReBC which is high for an intermetallic. TbReBC and GdReBC exhibit superconductivity at ≈4 K. A magnetic transition is also observed in TbReBC around 30 K. From our measurements, we infer that superconductivity originates from a bulk quaternary superconducting phase in these materials. |
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| Keywords: | A Superconductors A Magnetically ordered materials D Electronic transport |
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