The candidate pool for engineered materials that can help enable tomorrow's cutting-edge optical technologies—such as lasers, detectors and imaging devices—is much deeper than previously believed.

The surface electrons in a topological insulator are resistant to localization by nonmagnetic disorder, but are affected by lattice disorder. Here, the authors show that resonance states near ...

ARPES maps the electronic properties, including the band structure and Fermi surface, of the topological insulator bismuth selenide (left). Like graphene, the lower energy valence band of a ...

Topological insulators are often considered to be one-band problems that are easy to solve. However, strongly correlated topological insulators cannot be described by band theory because the ...

The band structure of the surface states of a topological insulator like Bi2Se3 appear as two cones that meet at a point, called the Dirac point.

It was the first time researchers have seen this kind of gate-dependent oscillation in nanoribbons and further correlates it to the topological insulator band structure of bismuth telluride.

In this setup, sound waves would not be able to move through the center of the structure due to a periodic pattern that would produce a sonic band gap—but the rotating fluid around the center ...

The electrical behavior of many materials as to why some are good conductors, some are semiconductors and some others insulators, is now well explained on the basis of ‘Band Theory'.

New works presents a unified theoretical framework to describe the electronic structure of non-Hermitian systems, potentially leading to major advancements in condensed matter physics ...

The candidate pool for engineered materials that can help enable tomorrow's cutting-edge optical technologies—such as lasers, detectors and imaging ...