GAUGE-FIELDS AND PAIRING IN DOUBLE-LAYER COMPOSITE FERMION METALS

Authors
BONESTEEL NE MCDONALD IA NAYAK C
Citation
Ne. Bonesteel et al., GAUGE-FIELDS AND PAIRING IN DOUBLE-LAYER COMPOSITE FERMION METALS, Physical review letters, 77(14), 1996, pp. 3009-3012
Citations number
25
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
77
Issue
14
Year of publication
1996
Pages
3009 - 3012
Database
ISI
SICI code
0031-9007(1996)77:14<3009:GAPIDC>2.0.ZU;2-V
Abstract
A symmetrically doped double-layer electron system with total tilling fraction nu = 1/m decouples into two even-denominator composite fermio n ''metals'' when the layer spacing is large. Statistical gauge fluctu ations in this system mediate an attractive pairing interaction betwee n composite fermions in different layers. A strong-coupling analysis s hows that for any layer spacing d this pairing interaction leads to th e formation of a paired quantum Hall state.