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          Institute: MPI für Chemische Physik fester Stoffe     Collection: publications 2013     Display Documents



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ID: 671317.0, MPI für Chemische Physik fester Stoffe / publications 2013
BCS-like superconductivity in the noncentrosymmetric compounds NbxRe1-x (0.13 <= x <= 0.38)
Authors:Chen, J.; Jiao, L.; Zhang, J. L.; Chen, Y.; Yang, L.; Nicklas, M.; Steglich, F.; Yuan, H. Q.
Language:English
Date of Publication (YYYY-MM-DD):2013-10-21
Title of Journal:Physical Review B
Volume:88
Issue / Number:14
Start Page:144510-1
End Page:144510-6
Sequence Number of Article:144510
Review Status:not specified
Audience:Not Specified
Abstract / Description:We present research on the superconducting properties of NbxRe1-x (x = 0.13-0.38) obtained by measuring the electrical resistivity rho(T), magnetic susceptibility chi(T), specific heat C-P (T), and London penetration depth Lambda lambda(T). It is found that the superconducting transition temperature Tc decreases monotonically with an increase of x. The upper critical field B-c2(T) for various x can be nicely scaled by its corresponding T-c. The electronic specific heat C-e(T)/T, penetration depth Delta lambda(T), and superfluid density rho(s)(T) demonstrate exponential behavior at low temperatures and can be well fitted by a one-gap BCS model. The residual Sommerfeld coefficient gamma(0)(B) in the superconducting state follows a linear field dependence. All these properties suggest an s-wave BCS-type of superconductivity with a very large B-c2(0) for NbxRe1-x (0.13 <= x <= 0.38).
External Publication Status:published
Document Type:Article
Communicated by:Ina Werner
Affiliations:MPI für chemische Physik fester Stoffe
Identifiers:ISI:000326086700008 [ID No:1]
ISSN:1098-0121 [ID No:2]
DOI:10.1103/PhysRevB.88.144510
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