Topological States with Broken Translational and Time-Reversal Symmetries in a Honeycomb-Triangular Lattice
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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8
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Physical Review A, Volume 91, issue 6, pp. 1-8
Abstract
We study fermions in a lattice, with on-site and nearest neighbor attractive interactions between two spin species. We consider two geometries: (1) both spins in a triangular lattice and (2) a mixed geometry with up spins in honeycomb and down spins in triangular lattices. We focus on the interplay between spin-population imbalance, on-site and valence bond pairing, and order parameter symmetry. The mixed geometry leads to a rich phase diagram of topologically nontrivial phases. In both geometries, we predict order parameters with simultaneous time-reversal and translational symmetry breaking.Description
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Sarjonen, R & Törmä, P 2015, 'Topological States with Broken Translational and Time-Reversal Symmetries in a Honeycomb-Triangular Lattice', Physical Review A, vol. 91, no. 6, 063605, pp. 1-8. https://doi.org/10.1103/PhysRevA.91.063605