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We report on the temperature dependences of polarized reflectance spectra of ß”-(bis(ethylenedithio) tetrathiafulvalene)2SF5CH2SO3. The material remains in the charge-ordered state over the whole temperature range. Room temperature infrared spectra display the response characteristic of a quasi-twodimensional organic conductor, with a broad mid-infrared electronic excitation and a number of vibrational features related to intramolecular modes of both the bis(ethylenedithio)tetrathiafulvalene (ET) donor molecule and the SF5CH2SO3 anion. Upon lowering the temperature, unusual activation of intramolecular modes of ET is observed. We suggest that this effect is connected with electronmolecular vibration coupling within a dimerized lattice.
Wydawca
Czasopismo
Rocznik
Tom
Strony
621--627
Opis fizyczny
Bibliogr. 15 poz.
Twórcy
autor
autor
autor
autor
- Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland
Bibliografia
- [1] SEO H., HOTTA C., FUKUYAMA H., Chem. Rev., 104 (2004), 5005.
- [2] OLEJNICZAK I., JONES B.R., ZHU Z., DONG J., MUSFELDT J.L., SCHLUETER J.A., MORALES E., GEISER U., NIXON P.G., WINTER R.W., GARD G.L., Chem. Mater., 11 (1999), 3160.
- [3] JONES B.R., OLEJNICZAK I., DONG J., PIGOS J.M., ZHU Z.T., GARLACH A.D., MUSFELDT J.L., KOO H.-J., WHANGBO M.-H., SCHLUETER J.A., WARD B.H., MORALES E., KINI A.M., WINTER R.W., MOHTASHAM J., GARD G.L., Chem. Mater., 12 (2000), 2490.Optical study of β″-(ET)2SF5CH2SO3 627
- [4] WARD B.H., SCHLUETER J.A., GEISER U., WANG H.H., MORALES E., PARAKKA J.P., THOMAS S.Y., WILLIAMS J.M., NIXON P.G., WINTER R.W., GARD G.L., KOO H.-J., WHANGBO M.-H., Chem. Mater., 12 (2000), 343.
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- [6] RICE M.J., Phys. Rev. Lett., 37 (1976), 36.
- [7] KOZLOV M.E., POKHODNIA K.I., YURCHENKO A.A., Spectrochim. Acta, 43A (1987), 323.
- [8] GIRLANDO A., MASINO M., BRILLANTE A., DELLA VALLE R.G., VENUTI E., Pairing mechanism in organic superconductors: the entangled role of phonons, New Developments in Superconductivity Research, Nova Science Publishers, New York 2003, p. 15.
- [9] MENEGHETTI M., BOZIO R., PECILE C., J. Physique (France), 47 (1986), 1377.
- [10] YAMAMOTO K., YAKUSHI K., MIYAGAWA K., KANODA K., KAWAMOTO A., Phys. Rev. B, 65 (2002), 085110.
- [11] YAMAMOTO T., URUICHI M., YAMAMOTO K., YAKUSHI K., KAWAMOTO A., TANIGUCHI H., J. Phys. Chem. B, 109 (2005), 15226.
- [12] WOJCIECHOWSKI R., unpublished results.
- [13] MUSFELDT J.L., ŚWIETLIK R., OLEJNICZAK I., ELDRIDGE J.E., GEISER U., Phys. Rev. B, 72 (2005), 014516.
- [14] RANZIERI P., MASINO M., GIRLANDO A., LEMÉE-CAILLEAU M.-H., Phys. Rev. B, 76 (2007), 134115.
- [15] PAINELLI A., DEL FREO L., SOOS Z.G., Synth. Met., 133-134 (2003), 619.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW7-0011-0118