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The unifying role of effective field in the composite fermion model of the fractional quantum Hall effect

Abstract:
Fractional Quantum Hall Effect measurements in 50 T pulsed magnetic fields, are analysed in the Composite Fermion (CF) model. Energy gaps of all fractions in the principal series around nu=1/2 show a simple, sample independent, increase with the CF effective field following root B*. The spin polarised state at nu=5/3 follows exactly the same behaviour, but for mixed spin states like 4/3 the energy gap collapses when B*>1 T.
Publication status:
Published

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Authors


Leadley, DR More by this author
vanderBurgt, M More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Singleton, J More by this author
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Volume:
361
Issue:
1-3
Pages:
22-25
Publication date:
1996
DOI:
ISSN:
0039-6028
URN:
uuid:09ec19bf-3a9d-4077-9282-286c3c0cb426
Source identifiers:
28643
Local pid:
pubs:28643

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