Topological Insulators are a class of materials where the electronic structure and symmetry of the surface is significantly different than from the bulk. An insulating material can have a conducting surface, but for topological insulators the crossing of two bands with different symmetry can lead to sharp Dirac cones near the Fermi level. Conductivity accommodated in these ‘Dirac states’ is expected to be extremely high due to the extreme (infinite) electron mobility.
Alternative(s): Topological Insulators, Dirac cones, symmetry protected fermions and infinite electron mobility
application-products
DFS30, DA30-L, ARPES Lab and NanoESCA
