Objectif Organic molecular conductors and, in particular, charge-transfer salts derived from the bisethylene-dithio-tetrathio-fulvalene (ET) molecule, are characterised mainly by two-dimensional (2D) physical properties, low electron concentrations and rather strong electron correlation compared to the interactions between electrons and molecular vibrations. The last point is of paramount importance in the field of fermiology and the strength of such electron-electron interactions may be estimated through the difference between the cyclotron mass values measured either by microwave cyclotron resonance or from quantum oscillations of the magnetoresistance and of the magnetisation. Moreover, it is necessary to obtain a better understanding of the relationship between the final band and crystal structures of these compounds and the original component molecules. It would indeed be highly desirable that new compounds with particular features for device applications, such as new (opto-) electronic components, could be designed without recourse to repeated iterative synthesis of trial materials.In the framework of the project the following work will be done: magnetotransport measurements down to 10 mK, up to 50 T in pulsed magnetic fields, measurements of the magnetic susceptibility down to 1.2 K, up to 5 T with SQUID technique and measurements of angle-dependent magnetotransport in 20 T Bitter coils and in hybrid magnets up to 30 T down to 1.2 K.; experimental study of the cyclotron resonance and thermoelectric power and theoretical analysis of the cyclotron resonance and experimental data processing; development of the submillimeter spectrometer installation; development and manufacturing of the thermoelectric power cryogenic insert, maintenance of the thermoelectric power set up; maintenance and improvement of the BWT-oscillators based millimeter low temperature spectrometer; study of Fermi surface topology; heat capacity and galvanomagnetic measurements; X-ray detemination of the single crystal directions before its physical properties measurements and collection of the experimental data on the X-ray diffractrometer; experimental investigation in high magnetic fields and under high pressure; design of quasi-two dimensional metals and superconductors like monocrystals of quasi-two dimensional organic metals based on BEDT-TTF; experimental study of the magnetoresistance and Hall effect; and experimental study of the conductivity by high frequency ac method and anisotropy of conductivity and investigation of the conductivity by dc method. Programme(s) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Thème(s) 15 - Condensed Matter Physics Appel à propositions Data not available Régime de financement Data not available Coordinateur Centre National de la Recherche Scientifique Contribution de l’UE Aucune donnée Adresse Complexe Scientifique de Rangueil 31077 Toulouse France Voir sur la carte Coût total Aucune donnée Participants (5) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire Katholieke Universiteit Nijmegen Pays-Bas Contribution de l’UE Aucune donnée Adresse 6525 ED Nijmegen Voir sur la carte Coût total Aucune donnée Russian Academy of Sciences Russie Contribution de l’UE Aucune donnée Adresse 142432 Chernogolovka, Moscow Region Voir sur la carte Coût total Aucune donnée Russian Academy of Sciences Russie Contribution de l’UE Aucune donnée Adresse 117942 Moscow Voir sur la carte Coût total Aucune donnée Russian Academy of Sciences Russie Contribution de l’UE Aucune donnée Adresse 142432 Chernogolovka, Moscow Region Voir sur la carte Coût total Aucune donnée THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD Royaume-Uni Contribution de l’UE Aucune donnée Adresse Keble Road 1- Denys Wilkinson Building OX1 3RH OXFORD Voir sur la carte Coût total Aucune donnée
