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Showing 1 to 6 of 6 for “"Zener tunneling"”.
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Experiments in vibro-impact beam dynamics and a system exhibiting a landau-zener quantum effect
… This report also includes the setup for a Landau-Zener Tunneling experiment involving two pendulums, one with fixed length and one with variable length. The experimental setup and tools used will be described, and some experimental results showing agreement with analytical data will be shown. It …
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Probing the upper limits of current flow in one-dimensional carbon conductors
We use breakdown thermometry to study carbon nanotube (CNT) devices and graphene nanoribbons (GNRs) on SiO2 substrates. Experiments and modeling find the CNT-substrate thermal coupling scales proportionally to CNT diameter. Diffuse mismatch modeling (DMM) reveals the upper limit of thermal coupling …
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Andreev-Streuung, Josephson-Bloch-Oszillationen und Zener-Tunneln in Heterokontakten aus Normal- und Supraleitern
… ist. Zusätzlich können die Quasiteilchen durch Zener-Tunneln --- wie der analoge Prozeß in der Halbleiterphysik genannt wird --- in höhere Bänder übergehen. Während sich die Richtung der Josephson-Stromdichte zu den Zeiten minimaler Energielücke umkehrt, hat die Zener-Tunnel-Stromdichte nach …
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Strongly nonlinear dynamics and acoustics of coupled granular sonic vacua: theoretical and experimental studies
… a macroscopic analogue of the well-known Landau-Zener Quantum effect in space. The aforementioned mechanisms of energy transfer and redirection in highly nonlinear granular chains are conceptually new and were presented for the first time. Analytical and computational studies of these nonlinear …
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Energy relaxation and thermal rectification in carbon devices
Power dissipation is a major challenge in modern electronics, from battery-limited portable devices to cooling in massive data centers. The most often cited technological roadblock of nanoscale electronics is the \textquotedblleft{}power problem\textquotedblright{} i.e. power densities and device …