
%0 Journal Article
%A Hutton, DR 
%A Darmann, FA 
%A Troup, GJ 
%T Electron Spin Resonance of V4+(VO2+) in Beryl
%J Australian Journal of Physics
%D 1991/06/01
%V 44
%N 4
%P 429-434
%K 
%R https://doi.org/10.1071/PH910429
%U https://www.publish.csiro.au/paper/PH910429 
%X Synthetic Australian Biron beryl coloured green by vanadium was irradiated with a dose of 10 kGy of 137Cs y rays. The reSUlting ESR spectrum has been modelled as being due to 12 equivalent V02+ centres, each arising from a complex formed from the substitution of V3+ in the beryl aluminium octahedral site, together with electron loss and motion towards a nearest neighbour oxygen. Each centre can be fitted to an axial spin Hamiltonian 
