What is a Quantum Spin Hall Insulator? A quantum spin Hall insulator (QSHI) is a novel state of matter that exhibits unique electronic properties. It is a type of topological insulator, which is a ...

The existence of an energy gap, however, does not guarantee that a material is a simple insulator. A counterexample is the two-dimensional integer quantum Hall state, which has an energy gap due ...

Scholars at the School of Engineering of the Hong Kong University of Science and Technology (HKUST) have unveiled an ...

Their work ("Quantum Spin Hall Effect in Graphene") would usher in a new era of materials science dealing with topological insulators. In two-dimensions, an ideal topological insulator would have ...

Led by Boston College physicist Qiong Ma, an international team working with single-atom thick crystals found TaIrTe4's transition between the two distinct topological states of insulation and ...

It's based on a quantum phenomenon called Quantum Anomalous Hall effect. The precise measurement ... a physicist at the Institute for Topological Insulators at the University of Würzburg (JMU).

If one side of a conducting or semiconducting material is heated while the other remains cool, charge carriers move from the ...

Prof. Enrico Rossi -- theory Topological insulators, graphene, superconductivity, quantum Hall states. Prof. Shiwei Zhang -- theory Fermi-Hubbard model, quantum Monte Carlo, computational physiscs.

Scholars at the School of Engineering of the Hong Kong University of Science and Technology (HKUST) have unveiled an innovation that brings artificial ...