Abstract
Band-structure effects have been investigated in two-dimensional lateral superlattices, consisting of 3×3, 7×7 and 9×15 cells, which form tuneable arrays of quantum dots. In the quantum Hall regime oscillations in the longitudinal magnetoconductance have been found. The reciprocal period scales with the total number of dots in the array, as expected for an artificial two-dimensional crystal. The order of magnitude of the period is in very good agreement with this description. On the slope between the Hall plateaux a more irregular behaviour of the magnetoconductance has been measured, which can be attributed to the crossing of energy gaps by the Fermi level.
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 callDisclaimer: 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.
