Anisotropy of Magnetoresistance and Shubnikov-de Haas Oscillations in Organic Metal (ET)$\text{}_{3}$CuCl$\text{}_{4}$ • H$\text{}_{2}$O

Behavior of the magnetoresistance has been studied in organic quasi two-dimensional metal (ET)$\text{}_{3}$CuCl$\text{}_{4}$•H$\text{}_{2}$O. Shubnikov-de Haas oscillations have been observed at the magnetic field directions near H ∥ c*. The oscillations frequency at H ∥ c* equals 45 T that corresponds approximately to 1% of the first Brillouin zone cross-section. The angle dependence of the oscillations frequency allows one to imagine at least the part of Fermi surface in the form of cylinder with an axis along c*.