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Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.241101
Abstract: Topological states may be protected by a lattice symmetry in a class of topological semi-metals. In three spatial dimensions, the Berry flux around gapless excitations in momentum space defines a chirality concretely, so a protecting…
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Keywords:
chiral symmetry;
range coulomb;
coulomb interaction;
long range ... See more keywords