High Magnetic Fields in Semiconductor Physics: Proceedings of the International Conference, Würzburg, Fed. Rep. of Germany, August 18–22, 1986

Front Matter....Pages I-XIV
Front Matter....Pages 1-1
Localization in Landau Levels of 2D Systems and the Quantum Hall Effect....Pages 2-10
Scaling of the Integral Quantum Hall Effect....Pages 11-15
Percolation Approach to the Quantum Hall Effect....Pages 16-27
Electrons in a Random Potential and Strong Magnetic Field: Lowest Landau Level....Pages 28-32
Calculation of the Conductivity of Two-Dimensional Disordered Systems in the Presence of a Strong Magnetic Field....Pages 33-44
Quantum Hall Effect: From the Winding Number to the Flow Diagram....Pages 45-48
Scattering Approach to the Quantum Hall Effect....Pages 49-52
The Quantum Mechanical Hall Effect....Pages 53-56
Density of States of Landau Levels in Two-Dimensional Systems from Activated Transport, Magnetocapacitance and Gate Current Experiments....Pages 57-66
A Statistical Model for Inhomogeneities Explaining the Apparent Density of States Between Landau Levels of a Two-Dimensional Electron Gas....Pages 67-70
The Density of States of a Two-Dimensional Electron Gas in a Perpendicular Magnetic Field Under the Influence of a Correlated Random Potential....Pages 71-74
Frequency- and Temperature-Dependent Conductivity in the Quantum Hall System....Pages 75-84
Ground-State Energy of Two-Dimensional Electron Solids in High Magnetic Fields....Pages 85-88
Energy Spectra of Interacting Two-Dimensional Electrons in a Magnetic Field....Pages 89-94
High-Frequency Conductivity in the Quantum Hall Effect Regime....Pages 95-103
A New Approach to the Quantum Hall Effect....Pages 104-112
A New Quantum Effect in the Transverse Magnetoresistance of Two-Dimensional Conductors with a Narrow Constriction in the Conducting Channel....Pages 113-117
A Model for the Quantum Effects Observed in the Transverse Magnetoresistance of Two-Dimensional Conductors with a Constricted Channel....Pages 118-121
Photoexcited Quantum Hall Behavior in Modulation Doped GaAs/ AlGaAs Heterostructures: Parallel Conduction and Subthreshold Photoeffects....Pages 122-126
Quantum Hall Effect in Bicrystals of p-Hg 0.75 Cd 0.23 Mn 0.02 Te....Pages 127-130
Front Matter....Pages 1-1
High-Precision Quantum Hall Effect Experiments at the National Institutes....Pages 131-133
Front Matter....Pages 135-135
Fractional Quantum Hall Effect in Silicon MOSFETs....Pages 136-145
Recent Advances in the Study of the Fractional Quantum Hall Effect....Pages 146-155
Activation Energies of the Fractional Quantum Hall Effect in GaAs/ AlGaAs Heterostructures....Pages 156-165
Fractional Quantum Hall Effect of p-Type GaAs-(GaAl)As Heterostructures in the Millikelvin Range....Pages 166-172
The Two-Dimensional Density of States at Fractional Filling Factors....Pages 173-177
Possible Fractional Filling Factors in the Quantum Hall Effect at Temperatures up to 4.2 K....Pages 178-181
Front Matter....Pages 183-183
Tunneling Cyclotron Resonance in Semiconductor Superlattices....Pages 184-192
Thermodynamic and Magneto-Optic Investigations of the Landau Level Density of States for 2D Electrons in GaAs....Pages 193-201
Magneto-Luminescence in Modulation-Doped AlGaAs-GaAs Multiple Quantum Well Heterostructures....Pages 202-212
Magneto-Luminescence in GaAs-(GaAl)As Superlattices....Pages 213-222
Magneto-Optics in GaAs-GaAlAs Quantum Wells....Pages 223-226
Inelastic Light Scattering in Two-Dimensional Systems in High Magnetic Fields....Pages 227-237
High Magnetic Field Studies of Confined Impurities in Semiconductors....Pages 238-247
Determination of the Electric Subband Energies and Wavefunctions in GaAs-AlGaAs Heterostructures Using Resonant Subband-Landau-Level Coupling....Pages 248-251
Cyclotron Resonance in n-GaAs/GaAlAs Heterojunction....Pages 252-255
Cyclotron Resonance in InSb in Crossed Electric and Magnetic Fields....Pages 256-265
Electronic Excitations in Laterally Microstructured AlGaAs-GaAs Heterojunctions....Pages 266-269
Landau Level Width and Cyclotron Resonance in 2D Systems....Pages 270-273
Hole Cyclotron Resonance in p-Type GaAs-AlGaAs Superlattices in High Magnetic Fields....Pages 274-277
Front Matter....Pages 183-183
Magnetoplasma Resonance in the Dynamic Conductivity of a Type I Superlattice....Pages 278-281
Radiative Recombination of Two-Dimensional Electrons with Nonequilibrium Holes in Si MOS-Structures....Pages 282-285
Front Matter....Pages 287-287
Theory of p- Type Inversion Layers in Magnetic Fields....Pages 288-294
Transport Properties of p-Type GaAs-(GaAl)As Heterojunctions in High Magnetic Fields....Pages 295-303
Two-Dimensional Hole Gas in GalnAs/ InP Heterojunction....Pages 304-307
Magnetotransport in the δ-Doping Layer....Pages 308-313
Magnetotransport and Photoconductivity of IV—VI Compound Superlattices....Pages 314-318
Oscillatory Current-Voltage Characteristics and Magnetocapacitance Effects in Single Barrier n + GaAs/ (AlGa)As/n-GaAs/n + GaAs Heterostructures....Pages 319-327
Aperiodic Quantum Magnetoresistance Oscillations in Submicron n + GaAs Wires....Pages 328-331
Magnetic Crossover in Narrow 2D Electron Systems....Pages 332-335
Resonant 2D Magnetopolarons in Accumulation Layers on n-Hg 0.8 Cd 0.2 Te....Pages 336-339
Phonon Scattering in Multiquantum Well Structures....Pages 340-343
Tunneling in Silicon Inversion Layers in High Magnetic Fields....Pages 344-352
Germanium Bicrystals in High Magnetic Fields....Pages 353-363
Front Matter....Pages 365-365
The Metal-Insulator Transition in n-Type Silicon in High Magnetic Fields....Pages 366-376
Anderson Transition Induced by Strong Magnetic Fields....Pages 377-380
Electron Transport in the Magnetically Induced M-I Transition in InSb....Pages 381-387
Magnetic Field Induced Metal-Nonmetal Transition in GaAs-GaAlAs Heterostructures with a Spacer....Pages 388-398
Front Matter....Pages 399-399
High Field Investigations on IV- VI Semiconductors....Pages 400-412
Recent Developments in Semimagnetic Semiconductors in Warsaw....Pages 413-420
Front Matter....Pages 399-399
Recent High-Field Work on Diluted Magnetic Semiconductors....Pages 421-426
Magnetic Field Dependence of the Acceptor Binding Energy in Open-Gap HgMnTe: Photo- and Magnetoconductivity....Pages 427-431
Spin Modulated Energy State by Shubnikov-de Haas Analysis in Hg 1-x-y Cd x Mn y Te at High Magnetic Fields....Pages 432-435
Phase Differences Between Quantum Oscillations of the Magnetoresistance and the Hall Effect in Hg 1-x Mn x Te and Hg 1-x Cd x Te....Pages 436-441
Magnetic Field Driven Insulator-to-Metal Transition in Semimagnetic Semiconductors....Pages 442-445
Magnetospectroscopy of Semimagnetic Zn 1-x Mn x Se....Pages 446-452
Front Matter....Pages 453-453
Nonlinear Spectroscopy of Narrow Gap Semiconductors in High Magnetic Fields....Pages 454-465
Energy Relaxation of Hot Carriers in GaAs in a Strong Magnetic Field Studied with Picosecond Photoluminescence....Pages 466-469
Population Inversion and Anomalous Voigt Effect Due to JxH Force in InSb....Pages 470-473
Interband Magneto-Optics in Narrow-Gap Semiconductors....Pages 474-477
Far Infrared Thermomodulation in Hg 0.8 Cd 0.2 Te....Pages 478-480
Front Matter....Pages 481-481
Theoretical Aspects of Wigner Condensation....Pages 482-490
On the Magnetic Field Induced Electron Condensation in n-HgCdTe....Pages 491-499
High Field Magnetoresistance of Organic Conductors and Disordered Metals....Pages 500-507
The Magnetophonon Effect in Narrow Gap Semiconductors....Pages 508-517
Hopping Conduction in n- InP in a Magnetic Field....Pages 518-522
Conduction Electrons in Bulk GaAs at High Magnetic Fields....Pages 523-530
How Strong Are Resonant Polaron Effects in 2D and 3D Semiconductor Systems?....Pages 531-534
Front Matter....Pages 535-535
The State of the Art of Generating Pulsed Magnetic Fields....Pages 536-543
Recent Investigations on Semiconductors in the 100 Tesla Range....Pages 544-554
Front Matter....Pages 535-535
Davydov Splitting of Excitons in Anthracene Single Crystals in Megagauss Fields....Pages 555-559
Back Matter....Pages 561-562