Magnetic and dielectric parameters for other complexes are summarized in Table . Later, in 2006, the same group investigated the change in dielectric property upon light irradiation. This is very important as the combination of dielectric switching and optical addressability are two necessary requirements for applying these materials in information storage and for reading and writing the information. [Fe(L35)(CN)2]•H2O (58), complex was used for this study which has a TLIESST of 130 K . From the temperature dependency of magnetic and the dielectric properties (Fig. ), it can be clearly seen that both properties change in a very similar fashion, proving the synergy between these two properties. Also, from the light-induced excitation and relaxation experiments (Fig. ), it was found that the dielectric properties can be switched using light irradiation. To support this change in the polarizability upon photo-irradiation, they also performed DFT calculations, which showed that the average polarizability is always higher in the HS state than in the LS state. (initially in a pure LS state) is shown. The points at which the light source was switched ON and OFF are indicated by the labels "ON" and "OFF" respectively. The relaxation curve at 115 K with the irradiation at 100 K is shown in the inset. Adapted with permission from Ref. .