Spin Hamiltonian of51V2plus;in MgO, as Derived from Electron Nuclear Double Resonance

摘要

The electron nuclear double resonance spectrum of51V2plus;diluted in a single crystal of MgO has been measured at 4.2deg; and 77deg;K. The spinhyphen;Hamiltonian parameters have been determined, including an additional hyperfine contribution of the typeS3I. Perturbation theory up to the fourth order has been used to calculate the latter term as a result of interactions of the ground orbital singlet with higher orbital levels.