The fine-tuning of topologically protected states in quantum materials holds great promise
for novel electronic devices. However, there are limited methods that allow for the controlled …

Defying the traditional classification into metals and insulators, several materials
simultaneously display metallic thermal properties and insulating electric behavior, as if they …

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 …

High-quality single crystals of EuAuAs were studied by means of powder x-ray diffraction,
magnetization, magnetic susceptibility, heat capacity, electrical resistivity and …

Studies of strongly correlated electron systems have been at the forefront of research in
condensed matter physics ever since the discovery of the co-existence of strong Pauli …

Exploring new topological phenomena and functionalities induced by strong electron
correlation has been a central issue in modern condensed-matter physics. One example is a …

Electronic state of every solid is basically classified into two categories according to its
electrical responses: insulator or metal. A textbook of modern solid state physics explains …

We investigate high-quality single-domain crystals of YbB 12 using the precise x-ray
diffraction technique in combination with the low-temperature polarized THz–infrared …

Planar tunneling spectroscopy of the Kondo insulator Sm B 6 suggests that an interaction
between the surface Dirac fermions and the bulk spin excitons results in incompletely …

The presence of magnetic impurities in topological insulators can disrupt their time reversal
symmetry and lead to the emergence of an energy gap. This study delves into the energy …