Electron paramagnetic resonance methods were used to determine the diffusivity of Mn2+ in single crystals at temperatures ranging from 400 to 700C. The results could be described by:

D (cm2/s) = 1.05 x 10-4 exp[-0.675(eV)/kT]

H.G.Riveros, E.P.Muñoz, C.M.Ruiz: Revista Mexicana de Fisica, 1971, 20[supplement], FA101-8