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VOLUME 71 (2000) | ISSUE 1 |
PAGE 42
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Magnetoresistance of the two-dimensional electron gas in a parallel magnetic field
Dolgopolov V.T., Gold A.
PACS: 71.30.+h, 73.50.-h
The conductivity of a two-dimensional electron gas in a parallel magnetic field is calculated. We take into account the magnetic field induced spin-splitting, which changes the density of states, the Fermi momentum and the screening behavior of the electron gas. For impurity scattering we predict a positive magnetoresistance for low electron density and a negative magnetoresistance for high electron density. The theory is in qualitative agreement with recent experimental results found for Si inversion layers and Si quantum wells.
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