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Signature of Quantum Hall Effect Skyrmions in Tunneling: A Theoretical Study

J. J. Palacios·H. A. Fertig
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Abstract

We present a theoretical study of the $I-V$ tunneling characteristic between two parallel two-dimensional electron gases in a perpendicular magnetic field when both are near filling factor $ν=1$. Finite-size calculations of the single-layer spectral functions in the spherical geometry and analytical expressions for the disk geometry in the thermodynamic limit show that the current in the presence of skyrmions reflects in a direct way their underlying structure. It is also shown that fingerprints of the electron-electron interaction pseudopotentials are present in such a current.

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J. J. Palacios, H. A. Fertig. 1997-02-20. Signature of Quantum Hall Effect Skyrmions in Tunneling: A Theoretical Study. https://doi.org/10.1103/physrevlett.79.471

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