Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9586231 | Journal of Luminescence | 2005 | 4 Pages |
Abstract
Organic conductor (EDO-TTF)2PF6 crystal having 14 filled band shows a metal (M)-insulator (I) transition accompanied with Peierls transition, charge ordering, and anion ordering at transition temperature, TC=280K. This crystal is an important and fascinating candidate for photo-induced M-I transition because the multi-instability will afford sensitivity to the tiny stimulation. We make the report of the reflectivity change in (EDO-TTF)2PF6 crystal induced by the irradiation of femto-second (fs) pulsed laser (pulse width: 120Â fs, main wavelength: 800Â nm, repetition rate: 1Â kHz). The obtained results indicate that the highly efficient I-to-M transition occurs within 3Â ps in this material. Based on these results, the strong electron-lattice cooperative interaction is proved to play an essential role in the driving process of this M-I transition. Also, 14 filled materials, which show M-I transition, accompanied with the charge ordering, can be classified as fascinating candidates not only for superconductivity but also for photo-induced cooperative phenomena and application in phase switching devices.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Matthieu Chollet, Laurent Guerin, Naoki Uchida, Souichi Fukaya, Tadahiko Ishikawa, Shin-ya Koshihara, Kazunari Matsuda, Hideki Yamochi, Akira Ota, Gunzi Saito,