Festkörperprobleme 28: Plenary Lectures of the 52nd Annual Meeting of the German Physical Society (DPG) and of the Divisions “Semiconductor Physics” “Dynamics and Statistical Physics” “Thin Films” “Surface Physics” “Low Temperature Physics” “Magnetism” “M

Charge-induced structural relaxation in hydrogenated amorphous silicon....Pages 1-20 Magnetooptics of two-dimensional electrons under the conditions of integral and fractional quantum hall effect in Si-MOSFETs and GaAs-AlGaAs single heterojunctions....Pages 21-43 Microwave investigations of the quantum hall effect in GaAs/AlGaAs heterostructures....Pages 45-62 Recent developments in the theory of highly excited semiconductors....Pages 63-85 The development of a 4 Mbit DRAM....Pages 87-98 Fabrication and optical spectroscopy of ultra small III–V compound semiconductor structures....Pages 99-119 Quasi-One-Dimensional electron systems on GaAs/AlGaAs heterojunctions....Pages 121-140 On the theory of high T c superconductors....Pages 141-162