Abstract
We consider the role of the finite width of the channel in the conductivity of a quasi 2D electron gas. If the transverse correlation radius of the scattering potential is smaller the width of the transverse electron density profile, then scattering to higher levels of the confinement potential causes broadening of the current flow profile. As a result the conductivity becomes larger than its value obtained from a quasiclassical 2D Boltzmann equation. A magnetic field, parallel to the driving electric field, effectively strengthen the confining potential and narrows both the electron density profile and the current density profile. Then the resistivity of the quasi 2D electron gas is expected to grow in longitudinal magnetic field.
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© 2003 Springer Science+Business Media Dordrecht
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Levanda, M., Fleurov, V. (2003). Quantum Effects in the Conductivity of a Quasi 2D Electron Gas. In: Vagner, I.D., Wyder, P., Maniv, T. (eds) Recent Trends in Theory of Physical Phenomena in High Magnetic Fields. NATO Science Series, vol 106. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0221-9_9
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DOI: https://doi.org/10.1007/978-94-010-0221-9_9
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-1373-7
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