Magnetoresistance oscillations in a periodic magnetic field due to internal Landau band structure

K Edmonds, B L Gallagher, P C Main, Alain Nogaret, M Henini, C H Marrows, D S MacIntyre

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Abstract

We present magneto-transport results for a two-dimensional electron gas subjected to a one-dimensional periodic magnetic modulation of varying amplitude. Commensurability and Shubnikov–de Haas oscillations are found to co-exist over a wide range of Landau level filling factors and modulation amplitudes. The Shubnikov–de Haas oscillations are strongly modulated in amplitude and show switches in phase. The observations are shown to be due to the internal structure of overlapping Landau bands.
Original languageEnglish
Pages (from-to)212-215
Number of pages4
JournalPhysica E-Low-Dimensional Systems & Nanostructures
Volume12
Issue number1-4
DOIs
Publication statusPublished - Jan 2002

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