title: Laterally modulated 2D electron system in the extreme quantum limit.
abstract: We report on magnetotransport of a two-dimensional electron system (2DES), located 32 nm below the surface, with a surface superlattice gate structure of periodicity 39 nm imposing a periodic modulation of its potential. For low Landau level fillings nu, the diagonal resistivity displays a rich pattern of fluctuations, even though the disorder dominates over the periodic modulation. Theoretical arguments based on the combined effects of the long-wavelength, strong disorder and the short-wavelength, weak periodic modulation present in the 2DES qualitatively explain the data.
authors.affiliation: Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA.
authors.forename: S
authors.initials: S
authors.lastname: Melinte
authors.forename: Mona
authors.initials: M
authors.lastname: Berciu
authors.forename: Chenggang
authors.initials: C
authors.lastname: Zhou
authors.forename: E
authors.initials: E
authors.lastname: Tutuc
authors.forename: S J
authors.initials: SJ
authors.lastname: Papadakis
authors.forename: C
authors.initials: C
authors.lastname: Harrison
authors.forename: E P
authors.initials: EP
authors.lastname: De Poortere
authors.forename: Mingshaw
authors.initials: M
authors.lastname: Wu
authors.forename: P M
authors.initials: PM
authors.lastname: Chaikin
authors.forename: M
authors.initials: M
authors.lastname: Shayegan
authors.forename: R N
authors.initials: RN
authors.lastname: Bhatt
authors.forename: R A
authors.initials: RA
authors.lastname: Register