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

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 $\nu =1$. 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.

4 pages, 1 figure

References in corpus (1)

• Hartree-Fock Theory of Skyrmions in Quantum Hall Ferromagnets

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