Magnetic behavior of YbNiSb
Phys. Rev. B 49, 641 – Published 1 January, 1994
DOI: https://doi.org/10.1103/PhysRevB.49.641
Abstract
From low-temperature heat capacity and ac susceptibility data it is inferred that YbNiSb orders magnetically at 0.8 K. An unusually large magnetic-field dependence of the heat capacity measured up to 20 K, and also a large decrease in the electrical resistivity (∼1200 μΩ cm) below 150 K are observed. These data suggest an appreciable dynamical mass renormalization of the quasiparticles due to a 4f conduction-band mixing effect.