Photo-excitation from dia- to ferri-magnetism in a Rb-Co-hexacyanoferrate Prussian blue analogue A. Goujon, O. Roubeau, F. Varret, A. Dolbecq, A. Bleuzen and M. Verdaguer Eur. Phys. J. B, 14 1 (2000) 115-124 Published online: 15 March 2000 DOI: 10.1007/s100510050112