Eu153Indirect Spin-Spin Interaction and Inhomogeneous Line Broadening in Ferromagnetic EuO

Abstract
The transverse relaxation rate of Eu153 in EuO, caused by the indirect Suhl-Nakamura interaction, has been calculated and measured. The results confirm the validity of a theoretical model that was developed recently to treat inhomogeneously broadened NMR lines. The local variation of the Eu153 hyperfine field is determined and interpreted in terms of a local strain.