Susceptibility of a Magnetic Impurity in Two-Dimensional Disordered Electron Systems

Details Susceptibility of a Magnetic Impurity in Two-Dimensional Disordered Electron Systems Susceptibility of a Magnetic Impurity in Two-Dimensional Disordered Electron Systems

2002-04-18

arxiv.org/abs/cond-mat/0204386v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 5 figures, to appear in J. Phys. Soc. Jpn, Vol. 71, No. 5 (2002)

Scientific paper

10.1143/JPSJ.71.1246

We investigate the Kondo effect in two-dimensional disordered electron systems using a finite-temperature quantum Monte Carlo method. Depending on the position of a magnetic impurity, the local moment is screened or unscreened by the spin of the conduction electron. The results suggest that the Kondo temperature takes different values depending on the position of a magnetic impurity. We show that the distribution of the Kondo temperature becomes wide and the weight at $T_K=0$ becomes large as randomness increases. The average susceptibility shows a weak power-law divergence at low temperature in strongly disordered systems, indicating a non-Fermi-liquid behavior. We calculate the correlation function between the local moment and the spin of the conduction electron. The results are discussed in connection with Kondo screening.

Affiliated with

Also associated with

No associations

Rating

Susceptibility of a Magnetic Impurity in Two-Dimensional Disordered Electron Systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Susceptibility of a Magnetic Impurity in Two-Dimensional Disordered Electron Systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Susceptibility of a Magnetic Impurity in Two-Dimensional Disordered Electron Systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-357922