Author/Authors :
Vignolles، نويسنده , , David and Audouard، نويسنده , , Alain and Laukhin، نويسنده , , Vladimir N. and Nardone، نويسنده , , Marc and Canadell، نويسنده , , Enric and Spitsina، نويسنده , , Nataliya G. and Yagubskii، نويسنده , , Eduard B.، نويسنده ,
Abstract :
Magnetoresistance of dirty crystals of the organic metal (BEDO)5Ni(CN)4·3C2H4(OH)2 (where BEDO stands for the bis(ethylenedioxy)tetrathiafulvalene molecule) has been measured up to 54 T at liquid helium temperatures. Quantum oscillations are clearly observed in a large field range even though a Dingle temperature as high as about 13 K is deduced from the field dependence of the oscillations amplitude. This value corresponds to scattering time as low as τ D ∼ 0.1 ps, leading to ω c τ D values (where ω c is the cyclotron pulsation) smaller than 1. Possible origins of the observed low scattering time value are discussed.
Keywords :
Organic metals , quantum oscillations , High magnetic fields , Fermi surface
