Raman-active molecular vibrations in the organic superconductor κ-[bis(ethylenedithio)tetrathiafulvalene]2Cu(NCS)2
S. Sugai, H. Mori, H. Yamochi, G. Saito
DOI 10.1103/PhysRevB.47.14374 · Physical Review B
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Abstract
Molecular vibrations of κ-[bis(ethylenedithio)tetrathiafulvalene)]2Cu(NCS)2 and its deuterated salt were investigated by Raman scattering. The polarization configuration, incident laser wavelength, and temperature dependence were measured. The observed peaks were assigned with the help of isotope shift, and the electron molecular-vibration coupling constants were estimated in cooperation with infrared data. The 502-cm−1 mode has the largest coupling constant λ=0.23 (0.30) in the b (c) direction. The 1474-cm−1 mode is next, λ=0.14 (0.17) in the b (c) direction.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| (BEDT-TTF)2Cu(NCS)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 10.4 | Pressure unresolved | unknown |
| (d8-BEDT-TTF)2Cu(NCS)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 11 | Pressure unresolved | unknown |
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