99 citations · 592 across the 23 of their papers we have counts for
11 papers · 1 filter
Nonlinear response in a non-centrosymmetric topological insulator
Zhou Li, Franco Nori
Nonlinear phenomena are inherent in most systems in nature. Second or higher-order harmonic generations, three-wave and four-wave mixing are typical phenomena in nonlinear optics.…
Optical spectral weight: comparison of weak and strong spin-orbit coupling
Zhou Li, J. P. Carbotte
The Fermi velocity () associated with the spin-orbit coupling is two orders of magnitude smaller for spintronic semiconductors than it is for topological insulators. Both fa…
Electron-phonon correlations on spin texture of gapped helical Dirac Fermions
Zhou Li, J. P. Carbotte
The metallic surface states of a topological insulator support helical Dirac fermions protected by topology with their spin locked perpendicular to their momentum. They can acquire…
Hexagonal warping on spin texture, Hall conductivity and circular dichroism of Topological Insulator
Zhou Li, J. P. Carbotte
The topological protected electronic states on the surface of a topological insulator can progressively change their Fermi cross-section from circular to a snowflake shape as the c…
Particle-hole asymmetry on Hall conductivity of a topological insulator
Zhou Li, J. P. Carbotte
The helical Dirac states on the surface of a topological insulator are protected by topology and display significant particle-hole asymmetry. This asymmetry arises from a subdomina…
Vanishing of interband light absorption in a persistent spin helix state
Zhou Li, F. Marsiglio, J. P. Carbotte
Spin-orbit coupling plays an important role in various properties of very different materials. Moreover efforts are underway to control the degree and quality of spin-orbit couplin…