Studies of the electromagnetic response of various classes of correlated electron materials
including transition-metal oxides, organic and molecular conductors, intermetallic …

Motivated by recent experiments on Kondo insulators, we theoretically study quantum
oscillations from disorder-induced in-gap states in small-gap insulators. By solving a non …

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 Kondo insulator SmB 6 has long been known to display anomalous transport behavior
at low temperatures, T< 5 K. In this temperatures range, a plateau is observed in the dc …

Samarium hexaboride (SmB6) is a Kondo insulator, with a narrow gap due to hybridization
between localized and conduction electrons. Despite being an insulator, many samples …

Precision measurements of the specific heat and spectral intensity I (ω) of Raman scattering
for Lu NB 12 single crystal samples with various boron isotopes (N= 10, 11, nat) have been …

The controversial ground-state properties of the Kondo insulator Sm B 6 have been
investigated using B 11 NMR in very high magnetic fields up to 37 T. We find evidence that …

In traditional semiconductors with large effective Bohr radius, an electron donor creates a
hydrogen-like bound state just below the conduction band edge. The properties of the …

In intermediate valence compounds, the subtle quantum equilibrium of two microscopic
configurations is at the origin of a very rich physics. SmB 6 is a famous example as it …

Resistivities of heavy-fermion insulators typically saturate below a characteristic temperature
T*. For some, metallic surface states, potentially from a non-trivial bulk topology, are a likely …