Using comprehensive first-principles calculations,we report two new kinds of 2D Titanium Carbide(TiC2)monolayer sheet with distinguished structure and properties.
Topological insulators have a bulk band gap as normal insulators but they have protected conducting edge states [for two-dimensions(2D)]and surface states(for 3D).
Bi is a fascinating material that has served many times in history to explore new physical phenomena in condensed matter physics for its extremely small Fermi surface,long Fermi wavelength of itineran