Electron spin resonance in disordered metals

Publisher Website
Google Scholar
Abstract
A theoretical study of the spin-resonance signal of electrons in a disordered metal with nuclear-spin impurities is performed. It is found that there are singular corrections to the linewidth near two dimensions. These corrections arise both from disorder and from the disorder-enhanced electron-electron interactions. To lowest order in the triplet scattering amplitude, the increase in linewidth is simply related to the enhancement of the spin susceptibility. These results are consistent with a recent experiment.