Haldane Sashes in Quantum Hall Spectra

Details Haldane Sashes in Quantum Hall Spectra Haldane Sashes in Quantum Hall Spectra

2010-06-22

arxiv.org/abs/1006.4348v2

Physics

Condensed Matter

Strongly Correlated Electrons

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Scientific paper

We show that the low-temperature sash features in the lowest Landau-level (LLL) tunneling density-of-states (TDOS) recently discovered by Dial and Ashoori are intimately related to the discrete Haldane-pseudopotential interaction energy scales that govern fractional quantum Hall physics. Our analysis is based on expressions for the tunneling density-of-states which become exact at filling factors close to $\nu=0$ and $\nu=1$, where the sash structure is most prominent. We comment on other aspects of LLL correlation physics that can be revealed by accurate temperature-dependent tunneling data.

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