English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Evidence for two-gap superconductivity in the non-centrosymmetric compound LaNiC2

MPS-Authors
/persons/resource/persons126930

Zhang,  J. L.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126782

Nicklas,  M.
Michael Nicklas, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126861

Steglich,  F.
Frank Steglich, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126919

Yuan,  H. Q.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

External Resource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Chen, J., Jiao, L., Zhang, J. L., Chen, Y., Yang, L., Nicklas, M., et al. (2013). Evidence for two-gap superconductivity in the non-centrosymmetric compound LaNiC2. New Journal of Physics, 15: 053005, pp. 053005-1-053005-16. doi:10.1088/1367-2630/15/5/053005.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0015-1ED0-C
Abstract
We study the superconducting properties of the non-centrosymmetric compound LaNiC2 by measuring the London penetration depth Delta lambda(T), the specific heat C(T, B) and the electrical resistivity rho(T, B). Both Delta lambda(T) and the electronic specific heat C-e(T) exhibit behavior at low temperatures that can be described in terms of a phenomenological two-gap Bardeen-Cooper-Schrieffer (BCS) model. The residual Sommerfeld coefficient in the superconducting state, gamma(0)(B), shows a rapid increase at low fields and then an eventual saturation with increasing magnetic field. A pronounced upturn curvature is observed in the upper critical field B-c2(T) near T-c. All these experimental observations support the existence of two-gap superconductivity in LaNiC2.