Ginzburg-Landau action and polarization current in an excitonic insulator model of electronic ferroelectricity
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DOI: 10.1103/physrevb.107.155142
Abstract: In comparison to transport of spin polarization in ferromagnets, transport of electric polarization in ferroelectrics remains less explored. Taking an excitonic insulator model of electronic ferroelectricity as a prototypical example, we theoretically investigate the low-energy… read more here.
Keywords: polarization; excitonic insulator; insulator model; electric polarization ... See more keywords