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Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-41529-y
Abstract: We study a Kitaev model on a square lattice, which describes topologically trivial superconductor when gap opens, while supports topological gapless phase when gap closes. The degeneracy points are characterized by two vortices in momentum…
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Keywords:
flat band;
band;
gapless phase;
topological gapless ... See more keywords