Magnetization in short-period mesoscopic electron systems

Abstract

We calculate the magnetization of the two-dimensional electron gas in a short-period lateral superlattice, with the Coulomb interaction included in Hartree and Hartree-Fock approximations. We compare the results for a finite, mesoscopic system modulated by a periodic potential, with the results for the infinite periodic system. In addition to the expected strong exchange effects, the size of the system, the type and the strength of the lateral modulation leave their fingerprints on the magnetization.

RevTeX4, 10 pages with 14 included postscript figures To be published in PRB. Replaced to repair figures

References in corpus (5)

• Addition spectrum, persistent current, and spin polarization in coupled quantum dot arrays: coherence, correlation, and disorder
• Magnons and skyrmions in fractional Hall ferromagnets
• A covering property of Hofstadter's butterfly
• Persistent Currents and Magnetization in two-dimensional Magnetic Quantum Systems
• Memorization of short-range potential fluctuations in Landau levels

Cited by in corpus (7)

• Magnetization of noncircular quantum dots
• The orbital magnetization of single and double quantum dots in a tight binding model
• Magneto-optical properties of a quantum dot array interacting with a far-infrared photon mode of a cylindrical cavity
• The tuning of para- and diamagnetic cavity photon excitations in a square array of quantum dots in a magnetic field
• Three-dimensional oscillator in magnetic field: the de Haas-van Alphen effect in mesoscopic systems
• Asymmetric Landau bands due to spin-orbit coupling
• Signatures of broken symmetries in the excitations of a periodic 2DEG coupled to a cylindrical photon cavity