Slow Dynamics of the Photoinduced Phase Transition in Pd(dmit)2 Salts (dmit = 1,3-dithiol-2-thione-4,5-dithiolate) |
| T. Ishikawaa, b, T. Tanakaa, N. Fukazawaa, Y. Matsubaraa, b, Y. Okimotoa, b, K. Ondab, c, S. Koshiharaa, b, M. Tamurad and R. Katoe
aTokyo Institute of Technology, Meguro-ku, Tokyo, 152-8551, Tokyo, Japan bCREST, JST, Meguro, Tokyo, 152-8551, Japan cTokyo Institute of Technology, Midori-ku, Yokohama Kanagawa, 226-8591, Japan dTokyo University of Science, Noda, Chiba, Japan eRiken, Wako, Saitama, Japan |
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| Slow dynamics of the initially photoinduced state has been observed by the pump-probe type time-resolved reflection spectroscopy in the charge separated phase of the half-filled strong dimer system, Et2Me2Sb[Pd(dmit)2]2 (dmit = 1,3-dithiol-2-thione-4,5-dithiolate). We have succeeded to reproduce the probe photon energy dependence of the time profile qualitatively in the time delay range from 10 ps to 1 ns assuming the dynamical expansion of the domain of the photo-induced dimer-Mott insulating phase in the host charge-separated one. |
| DOI: 10.12693/APhysPolA.121.316 PACS numbers: 78.40.Me, 78.47.D-, 78.47.jg, 78.55.Kz, 78.66.Qn |