two-dimensional electron gas
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two-dimensional electron gas[‚tü di′men·shən·əl i¦lek‚trän ′gas]
A system of electrons that are confined by opposing forces to a thin planar region adjacent to an interface or within a thin layer of material, but are free to move along the plane scattering off each other.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.