Abstract
Strong enhancement in the zero-magnetic-field resistivity, followed by negative magnetoresistance, has been observed for two-dimensional electron gases by introducing weak quasiperiodic (Fibonacci) potential modulation having a length scale close to the Fermi wavelength. The extra resistivity increases with decreasing length scale notwithstanding the concomitant decrease in the modulation amplitude, and also with decreasing temperature and increasing electron concentration. The enhancement is qualitatively explained by backscattering due to Bragg reflections from the quasiperiodic superlattices characterized by a dense set of reciprocal lattice vectors.
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 callMore From: Physica E: Low-dimensional Systems and Nanostructures
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
