Abstract
We study the thermoelectric transport in two dimensional topological system which has coexistence of superconductivity (SC) and spin-density wave (SDW). The SC is presumed to be of d x2 − y2 + (p x + i p y ) type whereas the SDW order parameter is of BCS symmetry. The Hamiltonian describing such a coexistence phase is shown to have topological phase in addition to the conventional one. The transport properties in such topological system have two distinct contributions: (i) the surface/edge and (ii) the bulk. The competition between the surface/edge versus the bulk transport is analyzed in different parameter regimes and the possibility of enhancing the figure of merit is discussed.
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Gupta, A., Sa, D. Thermoelectric transport in the topological phase due to the coexistence of superconductivity and spin-density-wave. Eur. Phys. J. B 89, 1 (2016). https://doi.org/10.1140/epjb/e2015-60366-0
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DOI: https://doi.org/10.1140/epjb/e2015-60366-0