Owing to new physical, technological, and device concepts of low-dimensionalelectronic systems, the physics and fabrication of quasi-zero, one- and two-dimensional systems are rapidly growing fields. The contributions presented in this volume cover results of nanostructure fabrication including recently developed techniques, for example, tunneling probe techniques and molecular beam epitaxy, quantum transport including the integer and fractional quantum Hall effect, optical and transport studies of the two-dimensional Wigner solid, phonon studies of low-dimensional systems, and Si/SiGe heterostructures and superlattices. To the readers new in the field this volume gives a comprehensive introduction and for the experts it is an update of their knowledge and a great help for decisions about future research activities.

Inhalt

I Low-Dimensional Structures - General Aspects.- Perspectives of Low-Dimensional Semiconductor Heterostructures.- Electronic Energy Levels in Nanostructures.- Phonon Studies of Low-Dimensional Structures.- Electron Transport in Antidot Superlattices.- Numerical Approaches to Transport in Mesoscopic Systems.- Ballistic Electron Optics.- Three "Universal" Mesoscopic Josephson Effects.- II SXM Analytical Techniques and Nano-Fabrication.- Surface Modification with the SXM's.- Contributions of Scanning Tunneling Microscopy for Probing and Manipulating Electronic Properties in Low Dimensions.- Atomic-Scale View of Epitaxial Layers with Cross-Sectional STM.- Nanostructure Fabrication.- Direct Fabrication of III-V Semiconductor Quantum Dots and Quantum Wires by Molecular Beam Epitaxy.- Atomically Precise Lower-Dimensional Structures.- III Landau Level Phenomena and Integer Quantum Hall Effect.- Magneto-Tunneling Between 2-Dimensional Systems.- Compressibility of the Interacting Two-Dimensional Electron Gas.- Finite-Size Scaling in the Dissipative Transport Regime Between Quantum Hall Plateaus.- IV Fractional Quantum Hall Effect and Electron Solid.- 2D-Liquids and Solids in Strong Magnetic Fields.- Transport Measurements on 2D Systems at Low-Filling Factors: Evidence for Wigner Crystal.- I-V, Transport and Noise in the Insulating Phase Around the 1/5 FQH Liquid.- RF Conductivity Study of Electron Correlations in the Small Filling-Factor Limit.- Microwave Photoconductivity of a Two-Dimensional Electron System at Low Landau Level Filling Factors.- Cyclotron Resonance in the Wigner-Solid Regime.- Cyclotron Resonance of Mixed Phases of a 2-D System in the Ultra-Quantum Limit.- Magneto-Optics and Transport Measurements as a Probe of the Fractional QHE and the Electron Solid Regimes: Review and New Results.- Correlated States of Degenerate 2D Electrons Studied by Optical Spectroscopy.- Magneto-Optics of the Incompressible Fermi Liquid and the Wigner Solid.- Magneto-Optics in the Fractional Quantum Hall and Electron Solid Regimes.- Fermi-Edge Singularities and Enhanced Magnetoexcitons in GaAs and (In,Ga) As Square, and (Ga,AlAs) Parabolic Single Quantum Wells.- V Optical Properties and Applications.- Luminescence and Raman Scattering Studies of Ga-As-AlGaAs Quantum Dots.- Optical Properties of Quantum Wires Grown on Nonplanar Substrates.- Blue and Green Diode Lasers and LEDs in II-VI Quantum Structures.- VI Si/SiGe Heterostructures and Devices.- Si/Ge Heterostructures and Superlattices: Bandstructure, Optical and Electronic Properties.- Si/SiGe Quantum Wells: Transport Properties and Possible Devices.- New Trends in Si and Sil?xrGex Devices and Nanostructures.- MBE-Growth and Device Applications of Modulation-Doped Si/SiGe Heterostructures.