Publication Date:
2016-01-01
Description:
The intermetallic compound YbInCu 4 undergoes an isostructural first-order valence-changing phase transition from a state with localized moments of the Yb into a Fermi liquid state with strong Kondo screening. This article reviews studies of the structure and of the electronic, magnetic, and magnetoelastic properties of compounds based on YbInCu 4 . The effects of alloying and pressure on such parameters of the electronic and magnetic state as the Kondo temperature, Curie paramagnetic temperature, effective magnetic moment, and valence of Yb are determined. The observational data are interpreted in terms of a single-impurity Kondo model. The magnetic anisotropy of single-crystal YbInCu 4 and magnetostriction in high magnetic fields are studied. It is shown that a crystal field model for localized states of Yb 3+ provides a good description of magnetic anisotropy and anisotropic magnetostriction in the high-temperature phase.
Print ISSN:
1063-777X
Electronic ISSN:
1090-6517
Topics:
Physics
