Charge density wave soliton liquid

Matsuura, T.; Hara, J.; Inagaki, K. et al.

EPL (Europhysics Letters), 2015, 109(2), 27005

Permalink : https://hdl.handle.net/2115/60619

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アクセス権	open access
URI	https://hdl.handle.net/2115/60619
タイトル	Charge density wave soliton liquid
著者	Matsuura, T. ; Hara, J. ; Inagaki, K. ; Tsubota, M. ; Hosokawa, T. ; Tanda, S.
著者名 Matsuura, T.
著者名 Hara, J.
著者名 Inagaki, K.
著者名 Tsubota, M.
著者名 Hosokawa, T.
著者名 Tanda, S.
言語	英語
発行日	2015-02-02
出版者	IOP Publishing
収録物名	EPL (Europhysics Letters)
巻(号)	109(2)
ページ	27005
抄録	We investigate the charge density wave transport in a quasi–one-dimensional conductor, orthorhombic tantalum trisulfide (o-TaS3), by applying a radio-frequency ac voltage. We find a new ac-dc interference spectrum in the differential conductance, which appears on both sides of the zero-bias peak. The frequency and amplitude dependences of the new spectrum do not correspond to those of any usual ac-dc interference spectrum (Shapiro steps). The results suggest that CDW phase dynamics has a hidden degree of freedom. We propose a model in which phase solitons behave as liquid. The origin of the new spectrum is that the solitons are depinned from impurity potentials assisted by an ac field when a small dc field is applied. Our results provide a new insight as regards our understanding of an elementary process in CDW dynamics.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0295-5075
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1209/0295-5075/109/27005