4.3 Article Proceedings Paper

Quasiparticle excitations in newly discovered antiperovskite superconductor ZnNNi3

Journal

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
Volume 470, Issue -, Pages S705-S706

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.physc.2009.10.084

Keywords

ZnNNi3; Superconductivity; Penetration depth; mu SR

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We report on transverse field muon spin rotation measurements of the superconducting penetration depth lambda in newly discovered antiperovskite superconductor ZnNNi3 in order to investigate the symmetry of order parameter. The penetration depth at T = 0 K is estimated to be lambda(0) = 362(2) nm. Temperature dependence of muon spin relaxation rate sigma(v) shows similar to T-2 dependence, suggesting unconventional superconductor. (C) 2009 Elsevier B.V. All rights reserved.

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