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The electrical resistivity for a current moving perpendicular to layers(chains) in quasi-2D (quasi-1D) metals under an applied magnetic field ofvarying orientation is studied using Boltzmann transport theory. We considerthe simplest non-trivial quasi-2D and quasi-1D Fermi surfaces but allow for anarbitrary elastic collision integral (i.e., a scattering probability witharbitrary dependence on momentum-transfer) and obtain an expression for theresistivity which generalizes that previously found using a singlerelaxation-time approximation. The dependence of the resistivity on the anglebetween the magnetic field and current changes depending on themomentum-dependence of the scattering probability. So, whereas zero-fieldintra-layer transport is sensitive only to the momentum-averaged scatteringprobability (the transport relaxation rate) the resistivity perpendicular tolayers measured in a tilted magnetic field provides detailed information aboutthe momentum-dependence of interlayer scattering. These results help clarifythe meaning of the relaxation rate determined from fits of angular-dependentmagnetoresistance oscillations (AMRO) experimental data to theoreticalexpressions. Furthermore, we suggest how AMRO might be used to probe thedominant scattering mechanism.

Anisotropic scattering in angular-dependent magnetoresistance oscillations of quasi-2D and quasi-1D metals: beyond the relaxation-time approximation