Muon spin rotation study of the ternary noncentrosymmetric superconductors Li$_2$Pd$_x$Pt$_{3-x}$B

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dc.creatorHäfliger, Petra S.
dc.creatorKhasanov, Rustem
dc.creatorLortz, Rolf
dc.creatorPetrović, Alexander
dc.creatorTogano, Kazumasa
dc.creatorBaines, Chris
dc.creatorGraneli, Bijörn
dc.creatorKeller, Hugo
dc.date2007-09-24
dc.date.accessioned2026-07-07T08:31:50Z
dc.date.available2026-07-07T08:31:50Z
dc.descriptionWe investigated the superconducting state of the noncentrosymmetric superconductors Li$_2$Pd$_x$Pt$_{3-x}$B with superconducting transition temperature $T_c$= 5.16(8) K ($x$=2.25), 3.56(8) K ($x=1.5$) and 2.60 K ($x=0$) by means of muon-spin rotation ($μ$SR) and specific heat experiments. The $μ$SR relaxation rate $σ_{sc}$ was found to be constant at low temperatures for all the compounds. Data taken at different magnetic fields show that the magnetic penetration depth $λ$ is field-independent for Li$_2$Pd$_{2.25}$Pt$_{0.75}$B and Li$_2$Pt$_{3}$B. The electronic contribution to the specific heat measured in Li$_2$Pd$_{1.5}$Pt$_{1.5}$B and Li$_2$Pt$_{3}$B increases exponentially at the lowest temperatures. These features suggest that the {\it whole family} of Li$_2$Pd$_x$Pt$_{3-x}$B are single-gap s-wave superconductors across the entire doping regime.
dc.description10 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0709.3777
dc.identifierhttp://arxiv.org/abs/0709.3777
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/138618
dc.subjectSuperconductivity
dc.titleMuon spin rotation study of the ternary noncentrosymmetric superconductors Li$_2$Pd$_x$Pt$_{3-x}$B
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