  Angle dependent magnetoresistance experiments on organic conductors exhibit a
wide range of angular oscillations associated with the dimensionality and
symmetry of the crystal structure and electron energy dispersion. In
particular, characteristics associated with 1, 2, and 3 dimensional electronic
motion are separately revealed when a sample is rotated through different
crystal planes in a magnetic field. Originally discovered in the TMTSF based
conductors, these effects are particularly pronounced in the related system
(DMET)2I3. Here, experimental and computational results for magnetoresistance
oscillations in this material, over a wide range of magnetic field
orientations, are presented in such a manner as to uniquely highlight this
multidimensional behavior.The calculations employ the Boltzmann transport
equation that incorporates the systems triclinic crystal structure, which
allows for accurate estimates of the transfer integrals along the
crystallographic axes, verifying the 1d, 2d and 3d nature of (DMET)2I3, as well
as crossovers between dimensions in the electronic behavior.
