Quantum Hall effect in Coulomb drag: Interlayer friction in strong magnetic fields

Efrat Shimshoni, Shivaji Lal Sondhi

Research output: Contribution to journalArticle

35 Scopus citations

Abstract

We study the Coulomb drag between two spatially separated electron systems in the quantum Hall regime. At a fixed temperature, the drag is peaked near the transitions between plateaus. The temperature dependence of the drag is a probe of the dynamics of the Hall system in a frequency and wave-vector regime inaccessible to transport measurements in a single layer. Most strikingly, in the transition regions it directly measures an exponent η, discussed by Chalker, that is characteristic of the fractal structure of the critical eigenstates.

Original languageEnglish (US)
Pages (from-to)11484-11487
Number of pages4
JournalPhysical Review B
Volume49
Issue number16
DOIs
StatePublished - Jan 1 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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