Relaxation studies

Abstract

The Kubo and Tomita formalism for the calculation of magnetic resonance absorption line shapes is generalized to include the effect of interdependent motional terms on a relaxing perturbation. When the perturbation is expressed in irreducible spherical tensor notation the second moments, relaxation times and line-shifts for a wide variety of interactions may be evaluated. The relevant properties of the tensors are determined and explicit calculations are performed. Results for typical interactions for electrons and nuclei are tabulated.