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Muon-spin rotation study of the ternary noncentrosymmetric superconductors Li2PdxPt3−xB

Häfliger, P S; Khasanov, R; Lortz, R; Petrovic, A; Togano, K; Baines, C; Graneli, B; Keller, H (2009). Muon-spin rotation study of the ternary noncentrosymmetric superconductors Li2PdxPt3−xB. Journal of Superconductivity and Novel Magnetism, 22(4):337-342.

Abstract

We investigated the superconducting state of the noncentrosymmetric superconductors Li2PdxPt3−xB 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 (μSR) and specific heat experiments. The μSR 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 Li2Pd2.25Pt0.75B and Li2Pt3B. The electronic contribution to the specific heat measured in Li2Pd1.5Pt1.5B and Li2Pt3B increases exponentially at the lowest temperatures. These features suggest that the whole family of Li2PdxPt3−xB comprises single-gap s-wave superconductors across the entire doping regime.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Electronic, Optical and Magnetic Materials
Physical Sciences > Condensed Matter Physics
Language:English
Date:May 2009
Deposited On:16 Apr 2009 13:07
Last Modified:02 Jun 2025 01:38
Publisher:Springer
ISSN:1557-1939
Additional Information:The original publication is available at www.springerlink.com
OA Status:Green
Publisher DOI:https://doi.org/10.1007/s10948-008-0440-y
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