منابع مشابه
Ballistic Majorana nanowire devices.
Majorana modes are zero-energy excitations of a topological superconductor that exhibit non-Abelian statistics1-3. Following proposals for their detection in a semiconductor nanowire coupled to an s-wave superconductor4,5, several tunnelling experiments reported characteristic Majorana signatures6-11. Reducing disorder has been a prime challenge for these experiments because disorder can mimic ...
متن کاملSignatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices.
Majorana fermions are particles identical to their own antiparticles. They have been theoretically predicted to exist in topological superconductors. Here, we report electrical measurements on indium antimonide nanowires contacted with one normal (gold) and one superconducting (niobium titanium nitride) electrode. Gate voltages vary electron density and define a tunnel barrier between normal an...
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Ballistic transport of electrons at room temperature in top-gated InAs nanowire (NW) transistors is experimentally observed and theoretically examined. From length dependent studies, the low-field mean free path is directly extracted as ~150 nm. The mean free path is found to be independent of temperature due to the dominant role of surface roughness scattering. The mean free path was also theo...
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With a brief introduction to ballistic phenomenon, the theory, fabrication, working and plausible applications of some ballistic devices are presented. Index – Heterostructure semiconductor, 2DEG, Electron Mobility, Mesoscopic Structure, Ballistic Transport, Ballistic Devices
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In recent years, a great deal of attention has been focused on the development of quantum wire transistors as a means of extending Moore’s law. Here the authors present results of fully three-dimensional, self-consistent quantum mechanical device simulations of InAs trigate nanowire transistor. The effects of inelastic scattering have been included as real-space self-energy terms. They find tha...
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ژورنال
عنوان ژورنال: Nature Nanotechnology
سال: 2018
ISSN: 1748-3387,1748-3395
DOI: 10.1038/s41565-017-0032-8