Shubnikov-de Haas oscillations in the new organic conductor (ET)8[Hg4CI12(C6H5Br)2]
Lyubovskii R. B. , Pesotskii S. I. , Lyubovskaya R. N.
The behavior of the magnetoresistance in a quasi-two-dimensional organic conductor (ET)8[Hg4Cl8(C6H5Br)2] with different orientations of the magnetic field and at different temperatures was investigated. Shubnikov-de Haas oscillations were observed for Η || a* ±60°. The sheet of the Fermi surface corresponding to these oscillations is a cylinder whose axis is oriented along a* and with the area of the section in the ( be) plane is equal to approximately 13% of the corresponding section of the Brillouin zone. An estimate of the cyclotron mass of the carriers responsible for the observed oscillation gives m*=\.25m0. The representation obtained for the Fermi surface in the experimental material agrees with the theoretical calculations. © 1995 American Institute of Physics.