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

doi:10.1103/PhysRevB.50.9445

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

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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
卷	50
發行號	13
DOIs	https://doi.org/10.1103/PhysRevB.50.9445
出版狀態	Published - 1994

All Science Journal Classification (ASJC) codes

凝聚態物理學

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10.1103/PhysRevB.50.9445

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title = "Superconductivity in (LuC)2(Ni2B2) and (LuC)(Ni2B2)",

abstract = "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).",

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T1 - Superconductivity in (LuC)2(Ni2B2) and (LuC)(Ni2B2)

AU - Gao, L.

AU - Qiu, X. D.

AU - Cao, Y.

AU - Meng, R. L.

AU - Sun, Y. Y.

AU - Xue, Y. Y.

AU - Chu, C. W.

PY - 1994

Y1 - 1994

N2 - 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).

AB - 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).

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

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