We report 11B nuclear magnetic resonance (NMR) studies of the impurity effect in noncentrosymmetric superconductors Li2Pt3B and Li2Pd3B. We substitute B with Al, and find that the full width of half maximum (FWHM) of the NMR spectrum increases with increasing Al content. The superconducting transition temperature (Tc) of Li2Pt3 B1-xAlx decreases drastically with increasing non-magnetic impurity (Al) content, while it is hardly affected in Li2Pd3 B1-xAlx. These results provide new evidence for superconducting gap with line nodes in Li2Pt3B.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - Jan 1 2013|
|Event||10th International Conference on Materials and Mechanisms of Superconductivity, M2S 2012 - Washington, DC, United States|
Duration: Jul 29 2012 → Aug 3 2012
ASJC Scopus subject areas
- Physics and Astronomy(all)