Compressibility of a 2D electron gas under microwave radiation

Details Compressibility of a 2D electron gas under microwave radiation Compressibility of a 2D electron gas under microwave radiation

2004-05-17

arxiv.org/abs/cond-mat/0405377v2

Phys. Rev. B 70, 161306(R) (2004).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

v2: analysis of the wave-vector dependence of the compressibility added; discussion of the Hall conductivity removed (shifted

Scientific paper

10.1103/PhysRevB.70.161306

Microwave irradiation of a two-dimensional electron gas (2DEG) produces a non-equilibrium distribution of electrons, and leads to oscillations in the dissipative part of the conductivity. We show that the same non-equilibrium electron distribution induces strong oscillations in the 2DEG compressibility measured by local probes. Local measurements of the compressibility are expected to provide information about the domain structure of the zero resistance state of a 2DEG under microwave radiation.

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