Topological materials have become the focus of intense research in recent years, since they
exhibit fundamentally new physical phenomena with potential applications for novel devices …

The discovery of the quantum spin Hall effect and topological insulators more than a decade
ago has revolutionized modern condensed matter physics. Today, the field of topological …

For decades, borides have been primarily studied as crystallographic oddities. With such a
wide variety of structures (a quick survey of the Inorganic Crystal Structure Database counts …

Topology, a mathematical concept, has recently become a popular and truly
transdisciplinary topic encompassing condensed matter physics, solid state chemistry, and …

We describe recent progress in our understanding of the interplay between interactions,
symmetry, and topology in states of quantum matter. We focus on a minimal generalization …

Time reversal symmetry (TRS) protects the metallic surface modes of topological insulators
(TIs). The transport signature of such surface states is a plateau that arrests the exponential …

Abstract The Kondo insulator SmB6 has long been known to exhibit low-temperature
transport anomalies whose origin is of great interest. Here we uniquely access the surface …

Flat-band materials such as the kagome metals or moiré superlattices are of intense current
interest. Flat bands can result from the electron motion on numerous (special) lattices and …

This article reviews recent theoretical and experimental work on a new class of topological
material—topological Kondo insulators, which develop through the interplay of strong …

In the Kondo insulator samarium hexaboride (SmB6), strong correlation and band
hybridization lead to an insulating gap and a diverging resistance at low temperature. The …