In the recently discovered kagome metal CsV3Sb5, an intriguing proposal invoking a doped
Chern insulator state suggests the presence of small Chern Fermi pockets hosting …

The emergence of charge-neutral fermionic excitations in magnetic systems is one of the
unresolved issues in recent condensed matter physics. This type of excitations has been …

Topological flat bands—where the kinetic energy of electrons is quenched—provide a
platform for investigating the topological properties of correlated systems. Here, we report …

In correlated electronic systems, strong interactions and the interplay between different
degrees of freedom may give rise to anomalous charge-transport properties, which can be …

We apply a strong magnetic field to a kagome Mott insulator with antiferromagnetic
interactions which does not show magnetic ordering down to low temperatures. We observe …

There has been a recent surge of interest in UTe 2 due to its unconventional magnetic field
(H)-reinforced spin-triplet superconducting phases persisting at fields far above the simple …

The electronic band structure can change with temperature in Mott and Kondo insulators,
even without a phase transition. Here, to clarify the underlying mechanism, the spectral …

Kondo insulators have recently aroused great interest because they are promising materials
that host a topological insulator state caused by the strong electron interactions. Moreover …

We investigate an experimental toy-model system of a pseudospin-half square-lattice
Hubbard Hamiltonian in [(SrIrO 3) 1/(CaTiO 3) 1] to include both nontrivial complex hopping …

The observation of 1/B-periodic behavior in Kondo insulators and semiconductor quantum
wells challenges the conventional wisdom that quantum oscillations (QOs) necessarily arise …