The Effect of Lattice Discreteness on the Linewidth of the Electron Spin Resonance of Local Moments in Metals

Abstract

Solutions of the Hasegawa-Bloch equations for the electron spin resonance of local moments in metals are obtained which take account of the discrete nature of the lattice. The most notable result derived is that the resonance linewidth is proportional to T - () for any degree of bottlenecking, where () is the paramagnetic Curie temperature calculated with lattice discreteness. An alternative derivation of the appropriate Hasegawa-Bloch equations is also given.