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Showing 1 to 9 of 9 for “"universal conductance fluctuations"”.
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Universal conductance fluctuations, glassy kinetics, and 1/f noise
… to be consistent with the predictions of the universal conductance fluctuation theory in the low temperature regime. Statistical properties of the noise in these systems were also studied in specially fabricated nanometer scale samples. Non-Gaussian effects and other aspects of the noise in …
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Universal conductance fluctuations, glassy kinetics, and 1/f noise
… to be consistent with the predictions of the universal conductance fluctuation theory in the low temperature regime.
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Phasenkohärenter Transport und Spin-Bahn-Wechselwirkung in III/V-Halbleiternanodrähten
… the nanowire is comparable to its dimensions the conductance fluctuates if a magnetic field is applied or if the electron concentration is changed by means of a gate electrode. These so-called universal conductance fluctuations being in the order of e²/h originate from the fact that in small …
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Mechanical relaxations, spin glasses and 1/f resistance noise
… dependence in accordance with predictions of universal conductance fluctuations. Predictions of the droplet theory of spin glasses were tested and no evidence was found for chaotic behavior with temperature changes. These results, and others, are more consistent with hierarchical models for …
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Mechanical relaxations, spin glasses and 1/f resistance noise
… dependence in accordance with predictions of universal conductance fluctuations. Predictions of the droplet theory of spin glasses were tested and no evidence was found for chaotic behavior with temperature changes. These results, and others, are more consistent with hierarchical models for …
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Superconducting proximity effect in mesoscopic metals
… the influence of Andreev reflection on universal conductance fluctuations, and nonequilibrium effects in current noise and in supercurrent through normal-metal Josephson weak links. This study is conducted in a close collaboration with experimental work carried out in different …
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Elektronischer Transport in Graphen
… Hall effect (QHE) can be observed with a Hall conductance quantized in units of 2e^2/h, 6e^2/h, 10e^2/h, 14e^2/h… . As a starting point for in-depth transport measurements the processing of graphene field effect transistors (GFETs) has been developed and optimized, based on the pioneering work …
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Topological Transport in Sb Quantum Wells
… to explain low and high field data. Zero field conductance measurements show reduced bulk conduction and residual surface conductivity at zero well thickness. Low field measurements exhibit a strong weak anti-localization (WAL) effect that dissipates with increasing temperature. Fits to WAL data …
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Quantum-coherent transport in low-dimensional mesoscopic structures and thin films
… phase coherence lengths were extracted by universal conductance fluctuations, and the extracted phase coherence lengths show a dependence on both temperature and geometry. Phase coherence lengths decreased with increasing temperature, as expected. Moreover, phase coherence lengths also …