B. Andrei Bernevig

Higher-order topological insulators

A new class of materials that are insulating in the bulk and on surfaces but have conducting hinge channels is studied.

Quantum Spin Hall Effect

The quantum Hall liquid is a novel state of matter with profound emergent properties such as fractional charge and statistics. The existence of the quantum Hall effect requires ...

Helical Liquid and the Edge of Quantum Spin Hall Systems

The edge states of the recently proposed quantum spin Hall systems constitute a new symmetry class of one-dimensional liquids dubbed the "helical liquid," where the spin orienta...

A complete catalogue of high-quality topological materials

Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells

We show that the quantum spin Hall (QSH) effect, a state of matter with topological properties distinct from those of conventional insulators, can be realized in mercury telluri...