Abstract
We use the numerical renormalization group method to calculate the single-particle matrix elements of the many-body matrix of the conduction electrons scattered by a magnetic impurity at temperature. Since determines both the total and the elastic, spin-diagonal scattering cross sections, we are able to compute the full energy, spin, and magnetic field dependence of the inelastic scattering cross section . We find an almost linear frequency dependence of below the Kondo temperature , which crosses over to a behavior only at extremely low energies. Our method can be generalized to other quantum impurity models.
- Received 2 April 2004
DOI:https://doi.org/10.1103/PhysRevLett.93.107204
©2004 American Physical Society