F. Renz et al., Light-perturbed hysteresis in an iron(II) spin-crossover compound observedby the Mossbauer effect, HYPER INTER, 126(1-4), 2000, pp. 155-158
The compound [Fe(phy)(2)](BF4)(2) (phy=1,10-phenanthroline-2-carbaldehyde p
henylhydrazone) shows spin-transition with a hysteresis of 10 K width aroun
d room temperature. Continuous irradiation of the compound during heating a
nd cooling with green light (514 nm) shifts the hysteresis in temperature.