Isotope effect in TTF-analog based organic superconductors
作者： Y. Tanaka , N. Kinoshita , Y. Asai , M. Tokumoto , Y. Hayakawa
DOI: 10.1016/0379-6779(91)92059-Q
关键词: Condensed matter physics 、 Inverse 、 BCS theory 、 Coupling constant 、 Superconductivity 、 Intramolecular force 、 Kinetic isotope effect 、 Molecule 、 Deuterium 、 Chemistry 、 Mechanical engineering 、 Materials Chemistry 、 Mechanics of Materials 、 Electronic, Optical and Magnetic Materials 、 Metals and Alloys
摘要: Abstract The isotope effect on the superconducting transition temperature ( T c ) of TTF-analog based organic superconductors is studied. We calculated electron-molecular vibration (e-mv) coupling constants as well frequencies totally symmetric intramolecular vibrations (a g modes) deuterated and undeuterated TTF molecules, estimated intramolecular-vibration-mediated superconductivity model proposed by Yamaji. It shown that an appreciable amount “inverse” can be deduced within framework BCS theory.
elsevier.com
sci-hub.se 参考文章(10)
Hideo Takeuchi, Jean-Luc Bribes, Issei Harada, Takehiko Shimanouchi, Crystal Vibrations and Intermodular Interactions of CH3X and CD3X (X=Cl, Br, and I) Bulletin of the Chemical Society of Japan. ,vol. 49, pp. 3483- 3492 ,(1976) , 10.1246/BCSJ.49.3483
Kunihiko Yamaji, On the mechanism of superconductivity in the organic conductors composed of TTF-analogs Solid State Communications. ,vol. 61, pp. 413- 417 ,(1987) , 10.1016/0038-1098(87)90129-3
M.E. Kozlov, K.I. Pokhodnia, A.A. Yurchenko, The assignment of fundamental vibrations of BEDT-TTF and BEDT-TTF-d8 Spectrochimica Acta Part A: Molecular Spectroscopy. ,vol. 43, pp. 323- 329 ,(1987) , 10.1016/0584-8539(87)80112-5
K Oshima, H Urayama, H Yamochi, G Saito, Superconductivity and deuteration effect in (BEDT-TTF)2Cu(NCS)2 Synthetic Metals. ,vol. 27, ,(1988) , 10.1016/0379-6779(88)90441-9
K. Yamaji, Mechanism of superconductivity in TTF-analog complexes Synthetic Metals. ,vol. 27, ,(1988) , 10.1016/0379-6779(88)90388-8
Renato Bozio, Alberto Girlando, Desare Pecile, Infrared and Raman spectra of TTF and TTF-d4 Chemical Physics Letters. ,vol. 52, pp. 503- 508 ,(1977) , 10.1016/0009-2614(77)80496-X
Renato Bozio, Ines Zanon, Alberto Girlando, Cesare Pecile, Vibrational spectroscopy of molecular constituents of one‐dimensional organic conductors. Tetrathiofulvalene (TTF), TTF+, and (TTF+)2 dimer Journal of Chemical Physics. ,vol. 71, pp. 2282- 2293 ,(1979) , 10.1063/1.438564
M. Tokumoto, K. Murata, N. Kinoshita, K. Yamaji, H. Anzai, Y. Tanaka, Y. Hayakawa, K. Nagasaka, Y. Sugawara, Superconductivity in BEDT-TTF Based Organic Metals: Role of Uniaxial Pressure and Inverse Isotope Effect Molecular Crystals and Liquid Crystals. ,vol. 181, pp. 295- 304 ,(1990) , 10.1080/00268949008036013
N. O. Lipari, C. B. Duke, L. Pietronero, Electron–vibration interactions in benzene and deuterobenzene Journal of Chemical Physics. ,vol. 65, pp. 1165- 1181 ,(1976) , 10.1063/1.433192
H. Schwenk, E. Hess, K. Andres, F. Wudl, E. Aharon-Shalom, Isotope effect in the organic superconductor (TMTSF)2 ClO4 Physics Letters A. ,vol. 102, pp. 57- 60 ,(1984) , 10.1016/0375-9601(84)90454-7