Coupling between nuclear Zeeman and electronic spin-spin interactions in dielectric solids

Abstract

The theory of thermal mixing between nuclear Zeeman interactions and electronic spin-spin interactions of impurities in dielectric solids, used to interpret the mixing between the Zeeman interactions of two nuclear spin species as the result of their separate coupling with the electronic spin-spin reservoir. The predictions of the theory are compared with the experimental observations made in lithium fluoride doped with F centres in the domain of high electronic polarization. They account for the field and temperature dependence of the mixing rate, as well as for the order of magnitude of that rate.