Year: 1999
Type: article
Abstract: We have studied the one-dimensional periodic, symmetric Anderson model at half filling in the presence of disorder using finite-temperature quantum Monte Carlo techniques. We have considered the disorder of both the hybridization between the local f-orbitals and the conduction electrons and the local f-site energy, using a uniform distribution of width Δ. The f-orbital local magnetic moment, the static magnetic susceptibility, the charge susceptibility, and the nearest-neighber magnetic correlation function have been calculated as a function of the disorder distribution width Δ. We find that the hybridization disorder has a dramatical effect on the low-temperature magnetic properties giving rise to a non-Fermi liquid behavior, and that the magnetic susceptibility can be scaled by a power law with an exponent which is in excellent agreement with experiment. On the other hand, disorder of the local f-orbital energy level does not show a non-Fermi liquid behavior.
Source: Journal of Applied Physics
DOI: 10.1063/1.370242
Authors: Feng Chen, Nicholas Kioussis
Institution: California State University, Northridge
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: National Science Foundation
OpenAlex ID: W2043277139