Role of finite layer thickness in spin-polarization of GaAs 2D electrons in strong parallel magnetic fields

Abstract

We report measurements and calculations of the spin-polarization, induced by a parallel magnetic field, of interacting, dilute, two-dimensional electron systems confined to GaAs/AlGaAs heterostructures. The results reveal the crucial role the non-zero electron layer thickness plays: it causes a deformation of the energy surface in the presence of a parallel field, leading to enhanced values for the effective mass and g-factor and a non-linear spin-polarization with field.

arXiv comment4 pages, 4 figures, Fig. 4 has been replaced from the previous version, minor changes in the text

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• Density dependent spin susceptibility and effective mass in interacting quasi-two dimensional electron systems
• Effective mass suppression in dilute, spin-polarized two-dimensional electron systems
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• Spin-valley phase diagram of the two-dimensional metal-insulator transition
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• Spin Density Matrix of Spin-3/2 Hole Systems
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• Contrast between spin and valley degrees of freedom
• Spin Susceptibility of Interacting Two-dimensional Electrons with Anisotropic Effective Mass
• Effective mass suppression upon complete spin-polarization in an isotropic two-dimensional electron system
• Spin Polarization of Quasi Two-Dimensional Hole Systems
• Aharonov-Bohm oscillations and electron gas transitions in hexagonal core-shell nanowires with an axial magnetic field
• Spin Susceptibility of a 2D Electron System in GaAs towards the Weak Interaction Region
• Remote-doping scattering and the local field corrections in the 2D electron system in a modulation-doped Si/SiGe quantum well
• Nonlinear magnetic field dependence of spin polarization in high density two-dimensional electron systems
• Realization of an Interacting Two-Valley AlAs Bilayer System
• Spin-independent effective mass in a valley-degenerate electron system
• Orbital effects of a strong in-plane magnetic field on a gate-defined quantum dot
• Magnetotransport in single layer graphene in a large parallel magnetic field
• Effect of in-plane magnetic field on the photoluminescence spectrum of modulation-doped quantum wells and heterojunctions
• Effective Mass and Spin Susceptibility of Dilute Two-Dimensional Holes in GaAs
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• Interplay among spin, orbital effects and localization in a GaAs two-dimensional electron gas in a strong in-plane magnetic field
• Colossal magnetoresistance in an ultra-clean weakly interacting 2D Fermi liquid
• Parallel Magnetic Field Tuning of Valley Splitting in AlAs Two-Dimensional Electrons
• Influence of the single-particle Zeeman energy on the quantum Hall ferromagnet at high filling factors
• On the Electron-Electron Interactions in Two Dimensions
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• Drude weight and optical conductivity of a two-dimensional heavy-hole gas with $k$-cubic spin-orbit interactions
• Spin Polarization Dependence of the Coulomb Drag at Large $r_s$
• Measurements of the magnetic properties of conduction electrons
• Spin susceptibility and polarization field in a dilute two-dimensional electron system in (111) silicon
• Enhancement of valley susceptibility upon complete spin-polarization
• Finite-thickness effect and spin polarization of the even-denominator fractional quantum Hall states
• Spontaneous spin polarization in doped semiconductor quantum wells
• Additional information for the paper `Attempt to distinguish long range temporal correlations from the statistics of the increments by natural time analysis' after its initial submission on February 25, 2006. Part II, Updated
• Comment on "Effects of Thickness on the Spin Susceptibility of the Two Dimensional Electron Gas"
• Spin susceptibility of two dimensional hole gases in GaAs/AlGaAs heterostructures
• Stoner Magnetism in an Inversion Layer
• Stoner-type theory of Magnetism in Silicon MOSFETs
• Interactions in high-mobility 2D electron and hole systems
• Spin mechanism of drag resistance in strongly correlated electron liquids
• Influence of spin-orbit interaction on quantum cascade transitions
• Measurement of spin-dependent conductivities in a two-dimensional electron gas