Electric-field control of solitons in a ferroelectric organic charge-transfer salt

F. Kagawa, S. Horiuchi, H. Matsui, R. Kumai, Y. Onose, T. Hasegawa, Y. Tokura

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46 Citations (Scopus)


The role of solitons in transport, dielectric, and magnetic properties has been revealed for the quasi-one-dimensional organic charge-transfer salt, TTF-QBrCl3 [tetrathiafulvalene (TTF)-2-bromo-3,5,6-trichloro-p-benzoquinone (QBrCl3)]. The material was found to be ferroelectric and hence the solitons should be located at the boundary of the segments with opposite electric polarization. This feature enabled the electric-field control of soliton density and hence the clear-cut detection of soliton contributions. The gigantic dielectric response in the ferroelectric phase is ascribed to the dynamical bound and creeping motions of spinless solitons.

Original languageEnglish
Article number227602
JournalPhysical Review Letters
Issue number22
Publication statusPublished - 2010 Jun 2
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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