We study the transport properties of the Kondo insulator SmB 6 with a specialized
configuration designed to distinguish bulk-dominated conduction from surface-dominated …

The heavy fermion semiconductors, or Kondo insulators, are very narrow gap
semiconductors in which the properties show unusual temperature dependencies. We shall …

As an exemplary Kondo insulator, SmB 6 has been studied for several decades. However,
direct evidence for the development of the Kondo coherent state and for the evolution of the …

Bulk and surface state contributions to the electrical resistance of single-crystal samples of
the topological Kondo-insulator compound SmB 6 are investigated as a function of crystal …

Topological insulators are materials characterized by dissipationless, spin-polarized surface
states resulting from nontrivial band topologies. Recent theoretical models and experiments …

We have performed direct measurements of the low-temperature dynamical conductivity and
dielectric permittivity of single crystalline SmB 6 in the spectral range from 0.6 to 4.5 meV, ie …

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 …

Recent theoretical and experimental findings suggest the long-known but not well
understood low temperature resistance plateau of SmB6 may originate from protected …

Motivated by the high sensitivity to Fermi surface topology and scattering mechanisms in
magnetothermoelectric transport, we have measured the thermopower and Nernst effect on …

The results of wide-range measurements of the low-frequency, rf, and microwave
conductivity in the typical mixed-valent narrow-gap semiconductor samarium hexaboride are …