期刊
EUROPEAN PHYSICAL JOURNAL B
卷 89, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1140/epjb/e2015-60366-0
关键词
-
资金
- National Natural Science Foundation of China [11004063]
- Fundamental Research Funds for the Central Universities, SCUT [2014ZG0044]
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)+ ip(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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