Transport in Electron Waveguides: Filtering and Bend Resistances

  • Harold U. Baranger
Part of the The Springer International Series in Engineering and Computer Science book series (SECS, volume 113)


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.


Green Function Transmission Coefficient Outgoing Mode Hall Resistance Fermi Wavelength 
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Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • Harold U. Baranger
    • 1
  1. 1.AT&T Bell LaboratoriesHolmdelUSA

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