Electron spin resonance in Kondo systems
Electron spin resonance in Kondo systems
We calculate the dynamical spin response of Kondo impurity and Kondo lattice systems within a semiphenomenological Fermi-liquid description, at low temperatures $T<{T}_{K}$, the Kondo temperature, and low magnetic fields $B⪡{k}_{B}{T}_{K}/g{\ensuremath{\mu}}_{B}$. Fermi-liquid parameters are determined by comparison (i) with microscopic theory (numerical renormalization group) for the impurity model and (ii) with …