Direct measurement of the density of states of a two-dimensional electron gas
- 15 August 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 32 (4), 2696-2699
- https://doi.org/10.1103/physrevb.32.2696
Abstract
We present a direct measurement of the density of states of a two-dimensional electron gas in a quantizing magnetic field. By measuring the magnetocapacitance of modulation-doped GaAs-(AlGa) As heterostructures at low frequencies, we have observed quantum oscillations resulting from changes in the density of states alone.Keywords
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