Coexistence of SDW, d-wave singlet and staggered $\pi$-triplet superconductivity
Abstract
We have studied the competition and coexistence of staggered triplet SC with d-wave singlet SC and SDW in the mean-field approximation. Detailed numerical studies demonstrate that particle-hole asymmetry mixes these states and therefore they are simultaneously present. Even more interesting were the results of our study of the influence of a uniform magnetic field. We observe novel transitions that show the characteristics of Fulde-Ferrel phases, yet they concern transitions to different combinations of the above orders. For example, above a given field, in a particle-hole symmetric system we observe a transition from d-wave singlet SC to a state in which d-wave singlet SC coexists with staggered triplet SC and SDW. We believe our results may provide, among others, a direct explanation to recent puzzles about the Fulde Ferrel like states that are apparently observed in CeCoIn5.
Keywords
Cite
@article{arxiv.0804.2460,
title = {Coexistence of SDW, d-wave singlet and staggered $\pi$-triplet superconductivity},
author = {A. Aperis and G. Varelogiannis and P. B. Littlewood and B. D. Simons},
journal= {arXiv preprint arXiv:0804.2460},
year = {2009}
}
Comments
To be published in J. Phys. Cond. Mat