Elementary excitations in Kondo-systems CeNiSn and CeRhSb

K. A. Kikoin, M. N. Kiselev, A. S. Mishchenko

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The anomalies in the low-temperature thermodynamics (heat capacity, thermal expansion) of Kondo-materials CeNiSn and CeRhSb are explained in a framework of the theory of spin liquid in a Kondo lattice which was used previously for quantitative description of inelastic magnetic neutron scattering spectra (2.5meV and 4meV excitations). These anomalies are explained by the interplay between the heavy fermions and the crystal field excitations in assumption that the crystal-field splitting δCF is less than Kondo temperature Tk. It is shown that the V-shape pseudogap appears in a spin excitation branch but the charge excitations remain gapless. The spin excitation spectrum for an orthorhombic lattice turns out to be highly anisotropic.

Original languageEnglish
Pages (from-to)1899-1900
Number of pages2
JournalCzechoslovak Journal of Physics
Issue numberSUPPL. 4
StatePublished - 1 Dec 1996
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Elementary excitations in Kondo-systems CeNiSn and CeRhSb'. Together they form a unique fingerprint.

Cite this