2008/02/29 by Ian Affleck, L. Borda, Laszlo Borda +1 · 5 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.77.180404
published as Phys. Rev. B 77, 180404(R) (2008) · More extensive discussion of experimental situation and referencing of earlier work added
arxiv created 2008/04/30 · openalex publication_date 2008/05/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We show that the long-distance charge-density oscillations in a metal induced by a weakly coupled spin-(1)/(2) magnetic impurity exhibiting the Kondo effect are given, at zero temperature, by a universal function F(r∕\ensuremathξK), where r is the distance from the impurity and \ensuremathξK is the Kondo screening cloud size \ensuremath≡\ensuremathℏvF∕(kBTK), where vF is the Fermi velocity and TK is the Kondo temperature. F is given by a Fourier-like transform of the T matrix. Analytic expressions for F(r∕\ensuremathξK) are derived in both limits r⪡\ensuremathξK and r⪢\ensuremathξK and F is calculated for all r∕\ensuremathξK using numerical methods.