Weyl nodal surfaces
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DOI: 10.1103/physrevb.97.075120
Abstract: We consider three-dimensional fermionic band theories that exhibit Weyl nodal surfaces defined as two-band degeneracies that form closed surfaces in the Brillouin zone. We demonstrate that topology ensures robustness of these objects under small perturbations… read more here.
Keywords: band; topology; nodal surfaces; weyl nodal ... See more keywords
Nodal surface semimetals: Theory and material realization
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DOI: 10.1103/physrevb.97.115125
Abstract: We theoretically study the three-dimensional topological semimetals with nodal surfaces protected by crystalline symmetries. Different from the well-known nodal-point and nodal-line semimetals, in these materials, the conduction and valence bands cross on closed nodal surfaces… read more here.
Keywords: nodal surface; surface semimetals; nodal surfaces; symmetry ... See more keywords