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Thermoelectric transport in the topological phase due to the coexistence of superconductivity and spin-density-wave

Author

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  • Amit Gupta

    (Banaras Hindu University)

  • Debanand Sa

    (Banaras Hindu University)

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.

Suggested Citation

  • Amit Gupta & Debanand Sa, 2016. "Thermoelectric transport in the topological phase due to the coexistence of superconductivity and spin-density-wave," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 89(1), pages 1-6, January.
    • Handle: RePEc:spr:eurphb:v:89:y:2016:i:1:d:10.1140_epjb_e2015-60366-0
    DOI: 10.1140/epjb/e2015-60366-0
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    Keywords

    Solid State and Materials;

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