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

doi:10.1051/epjconf/20134103020

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

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	18th International Conference on Ultrafast Phenomena, UP 2012
DOIs	https://doi.org/10.1051/epjconf/20134103020
Publication status	Published - 2013
Event	18th International Conference on Ultrafast Phenomena, UP 2012 - Lausanne, Switzerland Duration: 2012 Jul 8 → 2012 Jul 13

Publication series

Name	EPJ Web of Conferences
Volume	41
ISSN (Print)	2101-6275
ISSN (Electronic)	2100-014X

Other

Other	18th International Conference on Ultrafast Phenomena, UP 2012
Country/Territory	Switzerland
City	Lausanne
Period	12/7/8 → 12/7/13

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1051/epjconf/20134103020

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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., 03020, EPJ Web of Conferences, vol. 41, 18th International Conference on Ultrafast Phenomena, UP 2012, Lausanne, Switzerland, 12/7/8. https://doi.org/10.1051/epjconf/20134103020

@inproceedings{77aa739a6d234666b6805cdcfe42be61,

title = "Photoinduced growth of ferroelectric charge order in organic dimer-mott insulator",

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.",

author = "K. Itoh and H. Itoh and S. Iwai and M. Naka and S. Ishihara and S. Saito and N. Yoneyama and T. Sasaki",

year = "2013",

doi = "10.1051/epjconf/20134103020",

language = "English",

isbn = "9782759809561",

series = "EPJ Web of Conferences",

booktitle = "18th International Conference on Ultrafast Phenomena, UP 2012",

note = "18th International Conference on Ultrafast Phenomena, UP 2012 ; Conference date: 08-07-2012 Through 13-07-2012",

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T1 - Photoinduced growth of ferroelectric charge order in organic dimer-mott insulator

AU - Itoh, K.

AU - Itoh, H.

AU - Iwai, S.

AU - Naka, M.

AU - Ishihara, S.

AU - Saito, S.

AU - Yoneyama, N.

AU - Sasaki, T.

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

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U2 - 10.1051/epjconf/20134103020

DO - 10.1051/epjconf/20134103020

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T3 - EPJ Web of Conferences

BT - 18th International Conference on Ultrafast Phenomena, UP 2012

T2 - 18th International Conference on Ultrafast Phenomena, UP 2012

Y2 - 8 July 2012 through 13 July 2012

ER -

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

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