放射光を用いた電子密度解析による光誘起構造物性の研究

抄録

Charge density studies of photo-induced phase transition materials have been carried out by means of synchrotron radiation powder diffractometry. We found that the photo-excited HS phase in one of spin crossover complexes was distinctly different from both the ground LS and the thermally induced HS phases in a charge density level. The weak electrostatic interaction derived from the suppressed charge density between Fe and N in the photo-excited state should be an origin of the faster relaxation process than the conventional LIESST phenomenon.