Abstract
We have measured the magnetic susceptibility, specific heat, NMR, electrical resistivity, magnetoresistance, Hall effect, thermoelectric power, and thermal conductivity of polycrystalline Some of these properties are compared to those of The experimental data indicate the formation of a narrow energy gap of approximately in Similarities to the behavior of heavy-fermion semiconductors (Kondo insulators) are observed, in particular to CeNiSn. Thus, we believe that may be classified as a heavy-fermion semiconductor.
- Received 19 September 2002
DOI:https://doi.org/10.1103/PhysRevB.67.075111
©2003 American Physical Society