Titlebook: High Magnetic Fields in Semiconductor Physics; Proceedings of the I Gottfried Landwehr Conference proceedings 1987 Springer-Verlag Berlin H

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Density of States of Landau Levels in Two-Dimensional Systems from Activated Transport, Magnetocapacductivity seems to be useful for the determination of the density of states (DOS) of Landau levels in two-dimensional systems. The experimental results suggest a Landau level width not far away from the predictions of the self-consistent Born approximation (SCBA) if the Fermi level is close to the c

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A Statistical Model for Inhomogeneities Explaining the Apparent Density of States Between Landau Leveffects of Poisson’s equation and some essential properties of selfconsistent screening. The model yields an effective background density of states (DOS) between Landau levels (L.L.’s) and is used to explain a number of recent experimental observations. A three-dimensional model of a heterojunction

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Energy Spectra of Interacting Two-Dimensional Electrons in a Magnetic Fieldre subject to periodic boundary conditions. Classifying the states according to the irreducible representations of the appropriate magnetic space group enables them to be computed efficiently and leads to a detailed picture of their degeneracies. Numerical results for small systems are presented to

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High-Frequency Conductivity in the Quantum Hall Effect Regimecrowave frequencies (Ka band). Integer plateaus with even filling factor i are observed in σ. of the MHS as well as of the SHS with 2D electron and hole gas layers. In the case of the 2DEG in a SHS also the i=3 plateau is resolved. With this SHS it is clearly shown that the σ. plateaus occur equidis

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A New Approach to the Quantum Hall Effectad minima in the magnetoresistance can be explained without explicit reference to localized electron states. The main assumption is a moderate inhomogeneity in the electron density across the width of the sample. Earlier experiments on the distribution of the Hall voltage across the sample can be ex

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R. Johnston,L. Schweitzeras the midbrain raphe serotonin (5-hydroxytryptamine, 5-HT) system (.; .). Although twin studies have indicated that individual variation in measures of anxiety-related personality traits is 40-60% heritable, none of the relevant genes has yet been identified (.).