TY - GEN
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.
UR - http://www.scopus.com/inward/record.url?scp=84875676339&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84875676339&partnerID=8YFLogxK
U2 - 10.1051/epjconf/20134103020
DO - 10.1051/epjconf/20134103020
M3 - Conference contribution
AN - SCOPUS:84875676339
SN - 9782759809561
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 -