The Transition from Heavy Fermion to Mixed Valence in Ce1-xYxAl3: A Quantitative Comparison with the Anderson Impurity Model - Condensed Matter > Strongly Correlated ElectronsReportar como inadecuado




The Transition from Heavy Fermion to Mixed Valence in Ce1-xYxAl3: A Quantitative Comparison with the Anderson Impurity Model - Condensed Matter > Strongly Correlated Electrons - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: We present a neutron scattering investigation of Ce1-xYxAl3 as a function ofchemical pressure, which induces a transition from heavy-fermion behavior inCeAl3 TK=5 K to a mixed-valence state at x=0.5 TK=150 K. The crossover canbe modeled accurately on an absolute intensity scale by an increase in the k-fhybridization, Vkf, within the Anderson impurity model. Surprisingly, theprincipal effect of the increasing Vkf is not to broaden the low-energycomponents of the dynamic magnetic susceptibility but to transfer spectralweight to high energy.



Autor: E. A. Goremychkin, R. Osborn, I. L. Sashin, P. Riseborough, B. D. Rainford, D. T. Adroja, J. M. Lawrence

Fuente: https://arxiv.org/







Documentos relacionados