Abstract
The longitudinal conductivity of layered charge-ordered crystals in a high quantizing magnetic field perpendicular to layers is determined. The conditions in which the order parameter and chemical potential of carriers are oscillatory functions of the magnetic induction B are considered. The longitudinal conductivity is calculated for two relaxation time models: the time proportional to the longitudinal carrier velocity and constant time. It is shown that the relative contribution of the oscillatory conductivity part in the former model is less than in the latter. In high magnetic fields, the total conductivity of the layered crystal in the case of the relaxation time proportional to the longitudinal velocity initially exceeds the total longitudinal conductivity for the case of the constant relaxation time. However, in very high magnetic fields under conditions of carrier concentration in the single occupied Landau subband, the total conductivity in the case of the relaxation time proportional to the longitudinal velocity is again less than in the case of the constant relaxation time. Under these conditions, at a constant relaxation time, the total conductivity tends to zero as σ zz ∝ B −2; at the relaxation time proportional to the longitudinal velocity, it tends to zero as σ zz ∝ B −3.
Paper version not known (
Free)
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call