Commensurability oscillations in a lateral superlattice with broken inversion symmetry

Abstract

We investigate both, experimentally and theoretically, commensurability oscillations in the low-field magnetoresistance of lateral superlattices with broken inversion symmetry. We find that pronounced minima develop in the resistivity ${{\rho }_{xx}}$ when the flat band conditions of several relevant harmonics of the periodic potential nearly coincide.

Keywords

• magnetotransport
• two-dimensional electron systems
• lateral superlattice
• Weiss oscillations