Hillier, Adrian D and Quintanilla, Jorge and Mazidian, Bayan and Annett, James F and Cywinski, Robert (2012) Nonunitary Triplet Pairing in the Centrosymmetric Superconductor LaNiGa2. Physical Review Letters, 109 (9). 0-0. ISSN 0031-9007.
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| Official URL http://link.aps.org/doi/10.1103/PhysRevLett.109.09... |
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Abstract
Muon spin rotation and relaxation experiments on the centrosymmetric intermetallic superconductor LaNiGa2 are reported. The appearance of spontaneous magnetic fields coincides with the onset of superconductivity, implying that the superconducting state breaks time reversal symmetry, similarly to noncentrosymmetric LaNiC2. Only four triplet states are compatible with this observation, all of which are nonunitary triplets. This suggests that LaNiGa2 is the centrosymmetric analogue of LaNiC2. We argue that these materials are representatives of a new family of paramagnetic nonunitary superconductors.
| Item Type: | Article |
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| Additional information: | Article number: 097001 |
| Subjects: | Q Science Q Science > QC Physics Q Science > QC Physics > QC174.12 Quantum theory |
| Divisions: | Faculties > Science Technology and Medical Studies > School of Physical Sciences Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group |
| Depositing User: | J. Quintanilla-Tizon |
| Date Deposited: | 31 Aug 2012 13:05 |
| Last Modified: | 10 Oct 2012 15:19 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/30430 (The current URI for this page, for reference purposes) |
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