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.

To be published in J. Phys. Cond. Mat

References in corpus (1)

• Fulde-Ferrell-Larkin-Ovchinnikov State in Heavy Fermion Superconductors

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• Anisotropic magnetic-field response of quantum critical fluctuations in Ni-doped CeCoIn5
• Charge Density Waves beyond the Pauli paramagnetic limit in 2D systems
• Carrier-doping effect and anomalous transport properties in Ni-doped CeCoIn5 investigated by Hall resistivity measurements
• Spin-triplet pair density wave superconductors