Pump- and Probe-polarization Analyses of Ultrafast Carrier Dynamics in Organic Superconductors

Nakagawa, K.; Tsuchiya, S.; Yamada, J. et al.

Journal of superconductivity and novel magnetism, 2016, 29(12), 3065-3069

Permalink : https://hdl.handle.net/2115/67728

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アクセス権
open access
URI
https://hdl.handle.net/2115/67728
タイトル
Pump- and Probe-polarization Analyses of Ultrafast Carrier Dynamics in Organic Superconductors
著者
Nakagawa, K. ; Tsuchiya, S. ; Yamada, J. ; Toda, Y.
著者名
Nakagawa, K.
著者名
Tsuchiya, S.
著者名
Yamada, J.
e-Rad_Researcher
00313106
著者名
Toda, Y.
言語
英語
キーワード
Time-resolved spectroscopy
Organic superconductor ET salts
Polarization dependence
発行日
2016-12
出版者
Springer
収録物名
Journal of superconductivity and novel magnetism
巻(号)
29(12)
ページ
3065-3069
抄録
We investigated photo-excited carrier relaxation dynamics in the strongly correlated organic superconductors kappa-(BEDT-TTF)(2)Cu(NCS)(2) and kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br, using different polarizations of pump and probe pulses. Below the glasslike transition temperature (T (g)) anisotropic responses for probe polarization were observed in both compounds. Decomposing the data into anisotropic and isotropic components, we found the anisotropic component shows no pump polarization dependence, meaning that dissipative excitation process was dominant for the anisotropic carrier relaxation. This behavior indicates that the appearance of anisotropic responses can be associated with spatial symmetry breaking due to structural change of BEDT-TTF molecules.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
権利情報
The final publication is available at link.springer.com
PISSN
1557-1939
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1007/s10948-016-3741-6