Summary 2D layered materials with diverse exciting properties have recently attracted
tremendous interest in the scientific community. Layered topological insulator Bi 2 Se 3 …

Elemental tellurium, conventionally recognized as a narrow bandgap semiconductor, has
recently aroused research interests for exploiting Weyl physics. Chirality is a unique feature …

We report on the observation of a complex nonlinear intensity dependence of the circular
and linear photogalvanic currents induced by infrared radiation in compensated (Bi 0.3 Sb …

Optical helicity provides us with an effective means to control the helicity-dependent
photocurrent in the spin-momentum-locked surface states of topological insulators (TIs) …

We report evolution of the pulsed terahertz (THz) emission from Bi 2 Te 3 topological
insulator in a wide temperature range, where an interplay between the topological surface …

The circular photogalvanic effect (CPGE) provides a method utilizing circularly polarized
light to control spin photocurrent and will also lead to novel opto-spintronic devices. The …

Linear photogalvanic effects in monolayer WSe_2 with defects are investigated by non-
equilibrium Green's function technique combined with density functional theory. Monolayer …

Ultra-thin Bi 2 Se 3 nanoplates with high crystal quality are obtained by chemical vapor
deposition (CVD). A giant circular photogalvanic effect (CPGE) has been observed in the …

The unique topology of Weyl semimetals' band structure has been recently shown to lead to
a host of novel optoelectronic properties. Among them is the prospect of polarization …

Magnetic element doped Cd3As2 Dirac semimetal has attracted great attention for revealing
the novel quantum phenomena and infrared opto-electronic applications. In this work, the …