The search for a Fermi surface in the absence of a conventional Fermi liquid has thus far
yielded very few potential candidates. Among promising materials are spin-frustrated Mott …

SmB6 is predicted to be the first member of the intersection of topological insulators and
Kondo insulators, strongly correlated materials in which the Fermi level lies in the gap of a …

Kondo insulating materials lie outside the usual dichotomy of weakly versus correlated—
band versus Mott—insulators. They are metallic at high temperatures but resemble band …

The Kitaev model with an applied magnetic field in the H∥[111] direction shows two
transitions: from a nonabelian gapped quantum spin liquid (QSL) to a gapless QSL at H c 1≃ …

The canonical understanding of quantum oscillation in metals is challenged by the
observation of the de Haas–van Alphen effect in an insulator, SmB 6 [Tan et al, Science 349 …

The interplay between strong electron interactions and band topology is a new frontier in the
search for exotic quantum phases. The Kondo insulator SmB6 has emerged as a promising …

Sm B 6 is a candidate topological Kondo insulator that displays surface conduction at low
temperatures. Here, we perform torque magnetization measurements as a means to detect …

In 1928, Dirac proposed a wave equation to describe relativistic electrons. Shortly
afterwards, Klein solved a simple potential step problem for the Dirac equation and …

Quantum oscillations (QOs) describe the periodic variation of physical observables as a
function of inverse magnetic field in metals. The Onsager relation connects the basic QO …

In this paper we introduce a solvable two-orbital (two-band) model with an infinite-range
Hatsugai-Kohmoto interaction, which serves as a modified periodic Anderson model. Its …