Photoinduced growth of ferroelectric charge order in organic dimer-mott insulator

K. Itoh, H. Itoh, S. Iwai, Makoto Naka, S. Ishihara, S. Saito, N. Yoneyama, T. Sasaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Layered triangular organic dimer Mott (DM) insulator κ-(ET) 2Cu2(CN)3 was shown to exhibit a relaxor-like dielectric anomaly below 40 K with strong dispersion relation, reflecting its electric dipole glass (ferroelectric charge order; FCO) nature[1, 2]. The dielectric anomaly in κ-(ET)2Cu2(CN)3 indicates that this compound is located in the vicinity of the DM-FCO phase boundary, where ferroelectric fluctuation such as the electric dipole glass state or the polar cluster is formed in the DM phase. Optical excitation of the DM-FCO competing state by an ultrashort light pulse enables us to achieve dramatic responses, such as photoinduced ferroelectricity, photoinduced growth of the electric dipole glass or the polar clusters.

Original languageEnglish
Title of host publication18th International Conference on Ultrafast Phenomena, UP 2012
Volume41
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event18th International Conference on Ultrafast Phenomena, UP 2012 - Lausanne, Switzerland
Duration: 2012 Jul 82012 Jul 13

Other

Other18th International Conference on Ultrafast Phenomena, UP 2012
CountrySwitzerland
CityLausanne
Period12/7/812/7/13

Fingerprint

dimers
insulators
electric dipoles
glass
anomalies
ferroelectricity
pulses
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Itoh, K., Itoh, H., Iwai, S., Naka, M., Ishihara, S., Saito, S., ... Sasaki, T. (2013). Photoinduced growth of ferroelectric charge order in organic dimer-mott insulator. In 18th International Conference on Ultrafast Phenomena, UP 2012 (Vol. 41). [03020] https://doi.org/10.1051/epjconf/20134103020

Photoinduced growth of ferroelectric charge order in organic dimer-mott insulator. / Itoh, K.; Itoh, H.; Iwai, S.; Naka, Makoto; Ishihara, S.; Saito, S.; Yoneyama, N.; Sasaki, T.

18th International Conference on Ultrafast Phenomena, UP 2012. Vol. 41 2013. 03020.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Itoh, K, Itoh, H, Iwai, S, Naka, M, Ishihara, S, Saito, S, Yoneyama, N & Sasaki, T 2013, Photoinduced growth of ferroelectric charge order in organic dimer-mott insulator. in 18th International Conference on Ultrafast Phenomena, UP 2012. vol. 41, 03020, 18th International Conference on Ultrafast Phenomena, UP 2012, Lausanne, Switzerland, 12/7/8. https://doi.org/10.1051/epjconf/20134103020
Itoh K, Itoh H, Iwai S, Naka M, Ishihara S, Saito S et al. Photoinduced growth of ferroelectric charge order in organic dimer-mott insulator. In 18th International Conference on Ultrafast Phenomena, UP 2012. Vol. 41. 2013. 03020 https://doi.org/10.1051/epjconf/20134103020
Itoh, K. ; Itoh, H. ; Iwai, S. ; Naka, Makoto ; Ishihara, S. ; Saito, S. ; Yoneyama, N. ; Sasaki, T. / Photoinduced growth of ferroelectric charge order in organic dimer-mott insulator. 18th International Conference on Ultrafast Phenomena, UP 2012. Vol. 41 2013.
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