Fig. 1: Introduction to Sondheimer oscillations.
From: Sondheimer oscillations as a probe of non-ohmic flow in WP2 crystals
a Illustration of the Sondheimer effect. Left: the applied magnetic field is B = 3ΔB and the electron (red) makes an integer number of rotations, with no contribution to transport. Right: B ≠ nΔB. The electron hits the top surface at a different position than its origin on the bottom surface, leading to a contribution to the conductivity. b Resistivity as function of temperature for a WP2 microdevice. Inset: false-color SEM image of a typical device used in this study. c Sondheimer oscillations seen in the Hall resistivity of a WP2 microdevice, for different temperatures. The oscillation period of ΔB = 1.6 T is highlighted.
