Thumbnail
Access Restriction
Open

Author Herzog, Florian ♦ Wilde, Marc A. ♦ Heyn, Christian ♦ Hardtdegen, Hilde ♦ Schäpers, Thomas ♦ Grundler, Dirk
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ACCURACY ♦ EXCITATION ♦ GALLIUM ARSENIDES ♦ GROUND STATES ♦ INDIUM ARSENIDES ♦ INDIUM PHOSPHIDES ♦ L-S COUPLING ♦ MAGNETIZATION ♦ MATERIALS ♦ POTENTIALS ♦ QUANTUM WELLS ♦ SENSITIVITY ♦ TWO-DIMENSIONAL SYSTEMS
Abstract The quantum oscillatory magnetization M(B) and chemical potential μ(B) of a two-dimensional (2D) electron system provide important and complementary information about its ground state energy at low temperature T. We developed a technique that provides both quantities in the same cool-down process via a decoupled static operation and resonant excitation of a micromechanical cantilever. On InGaAs/InP heterostructures, we observed beating patterns in both M(B) and μ(B) attributed to spin-orbit interaction. A significantly enhanced sensitivity in μ enabled us to extract Rashba and Dresselhaus parameters with high accuracy. The technique is powerful for detailed investigations on the electronic properties of 2D materials.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-08-31
Publisher Place United States
Journal Applied Physics Letters
Volume Number 107
Issue Number 9


Open content in new tab

   Open content in new tab