Hillier, A.D. and Quintanilla, J. and Cywinski, R. (2009) Evidence for Time-Reversal Symmetry Breaking in the Noncentrosymmetric Superconductor LaNiC2. Physical Review Letters, 102 (11). 117007 -1. ISSN 0031-9007.
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Muon spin relaxation experiments on the noncentrosymmetric intermetallic superconductor LaNiC2 are reported. We find that the onset of superconductivity coincides with the appearance of spontaneous magnetic fields, implying that in the superconducting state time-reversal symmetry is broken. An analysis of the possible pairing symmetries suggests only four triplet states compatible with this observation, all of them nonunitary. They include the intriguing possibility of triplet pairing with the full point group symmetry of the crystal, which is possible only in a noncentrosymmetric superconductor.
|Additional information:||See also erratum: Phys. Rev. Lett. 105, 229901 (2010).|
|Subjects:||Q Science > QC Physics|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group|
|Depositing User:||J. Quintanilla-Tizon|
|Date Deposited:||03 Dec 2010 11:37|
|Last Modified:||16 Dec 2011 11:31|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/26087 (The current URI for this page, for reference purposes)|
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