Possible spin triplet superconductivity in Na$_x$CoO$_{2}\cdot y$H$_{2}$0
Preprint
- 17 April 2003
Abstract
Combining symmetry based considerations with inputs from available experimental results, we make the case that a novel spin-triplet superconductivity triggered by antiferromagnetic fluctuations may be realized in the newly discovered layered cobaltide Na$_x$CoO$_{2}\cdot y$H$_2$O. In the proposed picture, unaccessable via resonating-valence-bond physics extrapolated from half-filling, the pairing process is similar to that advanced for Sr$_{2}$RuO$_4$, but enjoys a further advantage coming from the hexagonal structure of the Fermi-surface which gives a stronger pairing tendency.Keywords
All Related Versions
- Version 1, 2003-04-17, ArXiv
- Published version: Physical Review Letters, 91 (25), 257006.
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