Kondo screening cloud in a one-dimensional wire: Numerical renormalization group study

2006/11/30 by L. Borda, Laszlo Borda · 3 citations
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Rare-earth and actinide compounds #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.75.041307

published as Phys. Rev. B 75, 041307(R) (2007) · published version

openalex publication_date 2007/01/23 · arxiv created 2007/01/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study the Kondo model---a magnetic impurity coupled to a one-dimensional wire via exchange coupling---by using Wilson's numerical renormalization group technique. By applying an approach similar to which was used to compute the two-impurity problem we managed to improve the poor spatial resolution of the numerical renormalization group method. In this way we have calculated the impurity-spin--conduction-electron-spin correlation function which is a measure of the Kondo compensation cloud whose existence has been a long-standing problem in solid-state physics. We also present results on the temperature dependence of the Kondo correlations.

Citations

• Spectral densities of Kondo impurities in nanoscopic systems
• Transport Coefficients of the Anderson Model via the Numerical Renormalization Group
• Spin Correlations and Finite-Size Effects in the One-Dimensional Kondo Box
• The renormalization group: Critical phenomena and the Kondo problem
• Kondo impurities in nanoscopic systems: Confinement-induced regimes
• Resistance Minimum in Dilute Magnetic Alloys

Cited by

• Kondo cloud and spin-spin correlations around a partially screened magnetic impurity
• Method to study highly correlated nanostructures: The logarithmic-discretization embedded-cluster approximation
• Splitting of the Kondo resonance in anisotropic magnetic impurities on surfaces