1999/04/17 by Feng Chen, Chen, Feng, Nicholas Kioussis +1
Physics and Astronomy · #FOS: Physical sciences #Magnetic properties of thin films #Rare-earth and actinide compounds #Strongly Correlated Electrons (cond-mat.str-el) #Theoretical and Computational Physics #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.cond-mat/9904247
13 pages, 3 figures
arxiv created 1999/04/17 · openalex publication_date 1999/04/17 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 examined for the first time the disorder both in hybridization between the local f-orbitals and the conduction electrons and in the local f-site energy, using a uniform distribution of width Δ. The f-orbital local magnetic moment, the uniform magnetic susceptibility, the charge compressibility, and the nearest-neighbor magnetic correlation function have been calculated as a function of the disorder distribution width Δ. We find that the disorder in hybridization has a dramatic effect on the low-temperature magnetic properties exhibiting a non-Fermi-liquid behaviour, and that for the range of temperature studied the magnetic susceptibility can be scaled by a power law with an exponent that is in agreement with recent experiments. On the other hand, disorder in the local f-orbital energy level does not show a non-Fermi liquid behaviour.