%0 Journal Article %T Magnetically driven maser effect in the resonant dynamics of V15 molecular nanomagnets %A Dartora %A C. A. %A Cabrera %A G. G. %A Nobrega %A K. Z. %J Brazilian Journal of Physics %D 2007 %I Scientific Electronic Library Online %R 10.1590/S0103-97332007000700013 %X resonant dynamics of magnetic molecules with spin 1/2 ground state, such as v15, is theoretically studied. in our model calculation, crystals of this molecular nanomagnet are probed by time-dependent magnetic fields, which continuously invert populations of spin states. if the sample is placed in a resonant cavity, relaxation of excited states, via spin-photon interaction, allows for stimulated emission of radiation in the microwave range at resonance. %K molecular magnets %K spin dynamics %K maser %K nanomagnets. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-97332007000700013&lng=en&nrm=iso&tlng=en