Rippled state of double-layer quantum Hall systems

Details Rippled state of double-layer quantum Hall systems Rippled state of double-layer quantum Hall systems

2002-06-02

arxiv.org/abs/cond-mat/0206021v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 3 figures, to appear in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.66.165325

The incommensurate phase of a bilayer quantum Hall state is found to have a ``rippled'' dipole charge density whenever the layers are unbalanced. This tunable dipole-density-wave instability could be detected by sensitive capacitance measurements and by anisotropic transport. We demonstrate this explicitly by carrying out a Hartree-Fock calculation of the layer densities and capacitance for a double-layer quantum Hall state at a total filling factor of 1.

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