Publication
Physical Review B
Paper

Direct measurement of the density of states of a two-dimensional electron gas

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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. © 1985 The American Physical Society.

Date

15 Aug 1985

Publication

Physical Review B

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