Physics
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..apr.d1003k&link_type=abstract
American Physical Society, April Meeting, 2003, April 5-8, 2003 Philadelphia, Pennsylvania, MEETING ID: APR03, abstract #D1.003
Physics
Scientific paper
In a mono-layer system a composite (c-) fermion with two flux quanta (fluxons) is known to be generated at the Landau level occupation number (filling factor) ν =1/2. In a bi-layer system two c-fermions are bound via the phonon exchange to form a pair (p) c-boson with parallel electron spins and the system of condensed pc-bosons generates a Quantum Hall Effect (QHE) state at ν =1/2. Similar pc-bosons are formed more efficiently at ν =1, and the QHE state developed is stronger. These QHE states become weaker at a tilted magnetic field since the pc-boson has a p-wave type charge distribution with the preferred axis along [001].
Fujita Shigeji
Godoy Salvador
Kumek Yunus
Okamura Yoshinobu
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