High Magnetic Fields in Semiconductor Physics III: Quantum Hall Effect, Transport and Optics

ISBN-13: 9783642844102 / Angielski / Miękka / 2011 / 698 str.

Gottfried Landwehr

Opis

High magnetic fields have, for a long time, been an important tool in the investigation of the electronic structure of semiconductors. In recent yearsstudies of heterostructures and superlattices have predominated, and this emphasis is reflected in these proceedings. The contributions concentrate on experiments using transport and optical methods, but recent theoretical developments are also covered. Special attention is paid to the quantum Hall effect, including the problem of edge currents, the influence of contacts, and Wigner condensation in the fractional quantum Hall effect regime. The 27 invited contributions by renowned expertsprovide an excellent survey of the field that is complemented by numerous contributed papers.

Spis treści

I Integer Quantum Hall Effect, Localization.- Ten Years of the Quantum Hall Effect: Development and Present State of the Theory.- An Overview of the Numerical Studies of the Quantum Hall Effect.- Scaling and the Quantum Hall Effect.- Scaling Behaviour of Doped AlGaAs/GaAs Heterostructures in the Quantum Hall Regime.- Magneto-Capacitance in Two-Dimensional Electronic Systems in AlxGa1?xAs/GaAs Heterostructures Under the Influence of Ionized Impurities.- Localization in the Quantum Hall Effect.- Full Localization of the 2D Electron Gas in Si MOSFETs at 30 mK and at High Magnetic Fields.- Electronic States in 2D Random Systems in High Magnetic Fields.- Localization and Scaling in the Quantum Hall Regime: Dependence on Landau Level Index and Correlation Length.- Magnetic Field Induced Transitions Between Quantized Hall and Insulator States in a Dilute 2D Electron Gas.- The Frequency-Dependent Deformation of the Hall Plateaus.- Multifractal Eigenstates in the Centre of Disorder Broadened Landau Bands.- Exact Widths and Tails for Landau Levels Broadened by a Random Potential with an Arbitrary Correlation Length.- Scattering Mechanism in the Integer Quantum Hall Effect.- Transport Theory of the Quantized Hall Effect.- Edge Channel Transport Under Quantum Hall Conditions.- Effect of Disorder and Gate Barrier on Edge States.- Effect of Nondissipative Edge Currents on the Magnetoresistance of a Two-Dimensional Electron Gas at High Magnetic Fields.- Nuclear Spin-Lattice Relaxation Under the QHE Conditions in the Edge States.- Low-Frequency Response and Dissipationless Edge Currents in the Integral QHE.- Effects of High Frequency Delocalization on the Quantum Hall Effect.- Screening and Transport Properties in a Triangular Well.- The Quantum Hall Effect in the Non-Isolated Quantum Well Approximation.- QUILLS in a Corbino Geometry.- Coulomb-Driven Destruction of Quantum Hall States in a Double Quantum Well.- Metrological Aspects of the Quantum Hall Effect.- The Use of an Exciton Probe of a Two Dimensional Electron Gas in the Quantum Hall Regime.- Quantum Wells in Tilted Magnetic Fields.- Magnetothermal Properties of a 2DEG in the Quantum Hall Effect Regime.- II Fractional Quantum Hall Effect.- Tilted-Field Effect, Optical Transitions and Spin Configurations of the Fractional Quantum Hall States.- Model Calculations for the Fractional Quantum Hall Effect.- Magneto-Optical Evidence for Fractional Quantum Hall States Down to Filling Factor 1/9 and for Wigner Crystallization.- On Some Peculiarities of Light Absorption in 2-d Wigner Crystals in High Magnetic Fields.- Optical Detection of Integer and Fractional QHE in GaAs: Extension to the Electron Solid.- Energy Shifts, Intensity Minima, and Line Splitting in the Optical Recombination of Electrons in the Integer and Fractional Quantum Hall Regimes.- Magnetic Field Dependent Lifetime of Photoexcited Electrons at a Heterojunction.- Dependence of the Fractional Quantum Hall Effect Energy Gap on Electron Layer Thickness.- Surface Acoustic Wave Studies of the Fractional Quantum Hall Regime.- Analogy Between Fractional Quantum Hall Effect and Commensurate Flux Phase States on a Lattice.- Fractional Quantum Hall Effect Experiments in Pulsed Magnetic Fields.- III Quantum Wires and Quantum Dots.- Quantum Wires in Magnetic Fields.- Coulomb-Regulated Conductance Oscillations in a Disordered Quantum Wire.- Magnetoconductance of Si MOSFET Quantum Wires: Weak Localization and Magnetic Depopulation of 1D Subbands.- Self-Consistent Screening, Single Particle Energy and Plasmon Excitation in a Quasi-One-Dimensional Electronic System.- Magnetic Field Dependence of Aperiodic Conductance Fluctuations in Narrow GaAs/AlGaAs Wires.- Thermal Transport in Free-Standing GaAs Wires in a High Magnetic Field.- Quantum Dots in High Magnetic Fields.- Far-Infrared Transmission of Voltage-Tunable GaAs-(Ga,Al)As Quantum Dots in High Magnetic Fields.- Magneto-Optical Spectrum of a Quantum Dot.- RPA-Calculation of Magnetoplasmons in Quantum Dots.- Microwave Conductivity of Laterally Confined Electron Systems in AlGaAs/GaAs Heterostructures.- IV Magneto-Transport in 2D Systems.- Magnetotransport in a Two-Dimensional Electron Gas Subject to a Weak Superlattice Potential.- 2D Electrons in a Tilted Magnetic Field: Effect of the Spin-Orbit Interaction.- Evidence for Negative Sign of the Thermodynamic Density of States of 2D Electrons in Si Inversion Layers.- Electronic Transport in Regular Doping Structures.- High Magnetic Field Transport in II–VI Heterostructures.- Density of States of a Two Dimensional Electron Gas in High Magnetic Fields.- Penrose Lattice in High Magnetic Fields.- Semi-Metallic Behaviour in GaSb/InAs Heterojunctions.- Evidence for Exchange Enhancement of the Cyclotron Energy from Quantum Lifetime Measurements of a Two Dimensional Electron Gas.- Determination of Spin Splitting for Two-Dimensional Carriers with Strong Spin-Orbit Coupling from the Quantum Transport Phenomena.- Magnetoresistance and Hall Effect Measurements on Molecular-Beam Epitaxy-Grown ZnSe-on-GaAs Epilayers in High Magnetic Fields.- V Magneto-TVansport in 3D Systems.- High Magnetic Field Effects in Semimagnetic Semiconductors.- The 3D Analogue of the Quantum Hall Effect in HgSe:Fe and Its Temperature Dependence.- Influence of Localization on the Hall Effect in Narrow-Gap, Bulk Semiconductors.- Magnetotransport Investigation of HgSe:Ce in High Magnetic Fields.- Spin Dependent Scattering in (Cd1?x?yZnxMny)3As2 from the Shubnikov-de Haas Waveshape Analysis.- High-Electric-Field Transport in Hg0.8Cd0.2Te Under a Large Quantising Magnetic Field.- Magnetotransport in n-GaAs and n-AlxGa1?xAs in High Magnetic Fields Under Hydrostatic Pressure.- AC Conduction in n-Type InSb in the Magnetic Freeze-Out Region.- Negative Magnetoresistance of InP in the Hopping Region.- VI Magneto-Optics, Mainly in Quantum Well Structures.- Magneto-Optic and Quantum Transport Studies of MBE InSb and InAs.- Magneto-Optical Studies of Impurities in Coupled and Perturbed Quantum Wells.- Magneto-Luminescence and Magneto-Luminescence Excitation Spectroscopy in Strained Layer Heterostructures.- Magneto-Excitons in CdTe/(CdMn)Te Quantum Wells.- Free and Bound Magnetic Polarons in CdTe/(Cd,Mn)Te Quantum Wells.- Magnetoluminescence of Optically Oriented Excitons in GaAs/AlGaAs Superlattices.- Determination of the Hole Effective Magnetic Moment in Quantum Wells in a Parallel Magnetic Field.- Resonant Raman Scattering in High Magnetic Fields.- Magnetooptical Investigations on S and P Excitons in Multiple Quantum Wells.- Magnetic Levels in Fibonacci Superlattices and Temperature Dependence of Spin Relaxation in Quantum Wells at High Magnetic Fields.- Anomalous Subband Landau Level Coupling in GaAs-AlGaAs Heterojunctions.- Cyclotron Resonance in the 2D Hole Gas of GaAs/AlGaAs Heterostructures.- Cyclotron Resonance Measurements in GaAs/AlGaAs Heterostructures in the Fractional Quantum Hall Range.- Impurity Emission from GaAs/GaAlAs Heterostructures in the FIR.- Electron Lifetime in the Low Field Limit: A Microwave Cyclotron Resonance Study.- Electron Scattering Studies in Semiconductors at High Magnetic Fields by Far-Infrared Cyclotron Resonance.- Anisotropy in the Conduction Band of GaAs.- Zeeman Effect of the Carbon Acceptor in GaAs, II.- Stimulated Interband Landau Emission due to Electromagnetic-Force Excitation of InSb at the Quantum Limit.- VII Collective Effects, Magneto-Phonon Effect.- Collective Excitations of Electrons in High Magnetic Fields.- Magnetoplasma Effects in Tunable Mesoscopic Systems on Si.- Magnetophonon Resonance Amplitudes in GaAs-GaAlAs Heterojunctions.- Optically Detected Magnetophonon Resonance in GaAs-GaAlAs Heterojunctions.- Resonant Magneto-Polarons in InSb.- Hot Hole Magnetophonon Resonance in p-InSb in High Magnetic Fields up to 40T.- VIII Magneto-Tunneling, Magnetization in 2D Systems.- Magnetotunnelling Spectroscopy to Measure the Electron and Hole ?(k) Dispersion Curves in the Quantum Well of Resonant Tunnelling Structures.- Interband Tunneling in Semiconductor Inversion Layers in High Magnetic Fields.- Resonant Magnetotunneling Current Through Double Barriers: Coherent and Sequential Processes.- Magnetization of a Two-Dimensional Electron Gas with Broadened Landau Levels.- IX Reports from High Magnetic Field Laboratories.- Recent Progress of Semiconductor Physics at the Megagauss Laboratory of the University of Tokyo.- Recent High-Field Investigations of Semiconductor Nanostructures and Other Systems at Nijmegen.- Index of Contributors.