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Acta Physica Sinica (Overseas Edition), 1995, Vol. 4(11): 864-869    DOI: 10.1088/1004-423X/4/11/011
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev  

RAMAN SCATTERING OF ORGANIC CHARGE-TRANSFER SALTS CONTAINING BEDT-TTF CATION

LIU DAO-ZHI (刘道志)a, W. HAYESb
Analysis Center, Tianljin University, Tianjin 300072, China; Clarendon Laboratory, Department of Physics, Oxford University, Oxford OX1 3PU, U.K.
Abstract  Raman scattering of several organic charge-transfer salts containing BEDT-TTF of ET cation such as $\kappa$-ET2Cu(NCS)2, $\beta$L-ET2I3, $\alpha$-ET3Cl2. 2H2O, $\alpha$-ET3 (ReO4)2 and ETFeBr4 were measured and the variations of the frequencies of C=C bonds of ET molecules on charge transfer were observed. It is found that the energy of C=C stretch modes shows a general downward shift upon ionisation of ET molecule. In addition, we have observed the Raman spectra of C=C stretch vibratinns in $\kappa$-ET2Cu(NCS)2 single crystal on going through Tc(~10.4 K) and found no detectable effect during the superconducting phase transition.
Received:  11 March 1995      Accepted manuscript online: 
PACS:  78.30.Jw (Organic compounds, polymers)  
  63.20.-e (Phonons in crystal lattices)  
  74.10.+v (Occurrence, potential candidates)  
Fund: This project in the Exchange program between China and UK supported by the Royal Society.

Cite this article: 

LIU DAO-ZHI (刘道志), W. HAYES RAMAN SCATTERING OF ORGANIC CHARGE-TRANSFER SALTS CONTAINING BEDT-TTF CATION 1995 Acta Physica Sinica (Overseas Edition) 4 864

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