Evidence for unconventional superconductivity in the nonoxide perovskite MgCNi3 from penetration depth measurements

R. Prozorov; A. Snezhko; T. He; J. Cava

doi:10.1103/PhysRevB.68.180502

Evidence for unconventional superconductivity in the nonoxide perovskite MgCNi₃ from penetration depth measurements

R. Prozorov, A. Snezhko, T. He, J. Cava

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Abstract

The London penetration depth λ(T) was measured in polycrystalline powders of the nonoxide perovskite superconductor MgCNi₃ by using a sensitive tunnel-diode resonator technique. The penetration depth exhibits distinctly non s-wave BCS low-temperature behavior, instead showing quadratic temperature dependence, suggestive of a nodal order parameter.

Original language	English (US)
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	68
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevB.68.180502
State	Published - Nov 13 2003

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.68.180502

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title = "Evidence for unconventional superconductivity in the nonoxide perovskite MgCNi3 from penetration depth measurements",

abstract = "The London penetration depth λ(T) was measured in polycrystalline powders of the nonoxide perovskite superconductor MgCNi3 by using a sensitive tunnel-diode resonator technique. The penetration depth exhibits distinctly non s-wave BCS low-temperature behavior, instead showing quadratic temperature dependence, suggestive of a nodal order parameter.",

author = "R. Prozorov and A. Snezhko and T. He and J. Cava",

year = "2003",

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doi = "10.1103/PhysRevB.68.180502",

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AU - Prozorov, R.

AU - Snezhko, A.

AU - He, T.

AU - Cava, J.

PY - 2003/11/13

Y1 - 2003/11/13

N2 - The London penetration depth λ(T) was measured in polycrystalline powders of the nonoxide perovskite superconductor MgCNi3 by using a sensitive tunnel-diode resonator technique. The penetration depth exhibits distinctly non s-wave BCS low-temperature behavior, instead showing quadratic temperature dependence, suggestive of a nodal order parameter.

AB - The London penetration depth λ(T) was measured in polycrystalline powders of the nonoxide perovskite superconductor MgCNi3 by using a sensitive tunnel-diode resonator technique. The penetration depth exhibits distinctly non s-wave BCS low-temperature behavior, instead showing quadratic temperature dependence, suggestive of a nodal order parameter.

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DO - 10.1103/PhysRevB.68.180502

M3 - Article

AN - SCOPUS:0347064232

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 18

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Evidence for unconventional superconductivity in the nonoxide perovskite MgCNi₃ from penetration depth measurements

Abstract

All Science Journal Classification (ASJC) codes

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