Recent theoretical and experimental studies show that the Lebed “magic angle” effects (for magnetic field rotations in the least conducting, $y\text{−}z$, plane of quasi-one-dimensional conductors) can be greatly enhanced by the presence of a field along the most conducting, $x$, direction. Here, we complete the picture with numerical Boltzmann calculations including the Nernst effect $S_{zx}$. Our results confirm that $B_x$ enhances the ${\sigma }_{zz}$ peaks at magic angles, but does not qualitatively affect the angular dependence of the Nernst effect $S_{zx}$. These results suggest that the magic angle effect cannot be explained simply by the Boltzmann transport of quasiparticles on the Fermi surface.

• Received 14 June 2007

DOI:https://doi.org/10.1103/PhysRevB.76.153102