TAO pairing: a fully gapped pairing scenario for the Iron-Based Superconductors
| Autor: | Ong, T. Tzen, Coleman, Piers |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Phys. Rev. Lett. 111, 217003 (2013) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.111.217003 |
| Popis: | Motivated by the fully gapped superconductivity in iron-based superconductors with uncompensated electron pockets, we propose a spin singlet, but orbital triplet analogue of the superfluid phase of He-3B. We show that orbital triplets with a nominal d-wave symmetry at the iron sites can transform as s-wave pairs under rotations about the selenium sites. Linear combinations of such d$_{xy}$ and d$_{x^{2}-y^{2}}$ triplets form a fully gapped, topological superconductor. Raman-active excitations are predicted to develop below the superconducting transition temperature. Comment: Two column version, with significant revision |
| Databáze: | arXiv |
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