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

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

*この研究の対応する著者

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトル18th International Conference on Ultrafast Phenomena, UP 2012
DOI
出版ステータスPublished - 2013
外部発表はい
イベント18th International Conference on Ultrafast Phenomena, UP 2012 - Lausanne, Switzerland
継続期間: 2012 7 82012 7 13

出版物シリーズ

名前EPJ Web of Conferences
41
ISSN(印刷版)2101-6275
ISSN(電子版)2100-014X

Other

Other18th International Conference on Ultrafast Phenomena, UP 2012
国/地域Switzerland
CityLausanne
Period12/7/812/7/13

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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