Abstract
Recent work has established that in certain materials electrons can travel without significant scattering, either elastic or inelastic, over a surprisingly large distance. The material of choice in this regard is the two-dimensional electron gas which is created at the GaAs/GaAlAs interface in modulation-doped heterostructures for which the elastic mean-free-path can be substantially greater than 1 μm. Furthermore, one can define wires in this material with a width of order the Fermi wavelength.[1] Studies of transport in these “quasi-one-dimensional ballistic microstructures” have revealed many novel features.
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Baranger, H.U. (1991). Transport in Electron Waveguides: Filtering and Bend Resistances. In: Hess, K., Leburton, J.P., Ravaioli, U. (eds) Computational Electronics. The Springer International Series in Engineering and Computer Science, vol 113. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-2124-9_40
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DOI: https://doi.org/10.1007/978-1-4757-2124-9_40
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