Gauge Fields and Pairing in Double-Layer Composite Fermion Metals
- 30 September 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 77 (14), 3009-3012
- https://doi.org/10.1103/physrevlett.77.3009
Abstract
A symmetrically doped double-layer electron system with total filling fraction decouples into two even-denominator composite fermion “metals” when the layer spacing is large. Statistical gauge fluctuations in this system mediate an attractive pairing interaction between composite fermions in different layers. A strong-coupling analysis shows that for any layer spacing this pairing interaction leads to the formation of a paired quantum Hall state.
Keywords
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