Collective excitation of electric dipole on molecular dimer in organic dimer-Mott insulator

H. Itoh; I. Hosako; K. Itoh; M. Naka; N. Yoneyama; S. Ishihara; S. Iwai; S. Saito; T. Sasaki

REVIEW

Collective excitation of electric dipole on molecular dimer in organic dimer-Mott insulator

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1210.2878 v3 pith:3YGOBS4F submitted 2012-10-10 cond-mat.str-el

Collective excitation of electric dipole on molecular dimer in organic dimer-Mott insulator

K. Itoh , H. Itoh , M. Naka , S. Saito , I. Hosako , N. Yoneyama , S. Ishihara , T. Sasaki

show 1 more author

S. Iwai

This is my paper

classification cond-mat.str-el

keywords electricbandcollectivedimer-mottdipoleexcitationinsulatorkappa-

verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved

0 comments

read the original abstract

The terahertz (THz) response in 10-100 cm^-1 was investigated in an organic dimer-Mott (DM) insulator kappa-(ET)_2Cu_2(CN)_3 that exhibits a relaxor-like dielectric anomaly. 30 cm^-1 band in the optical conductivity was attributable to collective excitation of the intra-dimer electric dipoles which are formed by an electron correlation. We succeeded in observing photoinduced enhancement of this 30 cm^-1 band, reflecting the growth of the electric dipole cluster in the DM phase. Such optical responses in kappa-(ET)_2Cu_2(CN)_3 reflect instability near the boundary between the DM-ferroelectric charge ordered phases.

Collective excitation of electric dipole on molecular dimer in organic dimer-Mott insulator

discussion (0)