Fractional Quantum Hall Effect at ν=2+6/13: The Parton Paradigm for the Second Landau Level.
Phys Rev Lett
; 121(18): 186601, 2018 Nov 02.
Article
em En
| MEDLINE
| ID: mdl-30444400
ABSTRACT
The unexpected appearance of a fractional quantum Hall effect (FQHE) plateau at ν=2+6/13 [A. Kumar et al., Phys. Rev. Lett. 105, 246808 (2010)PRLTAO0031-900710.1103/PhysRevLett.105.246808] offers a clue into the physical mechanism of the FQHE in the second Landau level (SLL). Here we propose a "3[over ¯]2[over ¯]111" parton wave function, which is topologically distinct from the 6/13 state in the lowest Landau level. We demonstrate the 3[over ¯]2[over ¯]111 state to be a good candidate for the ν=2+6/13 FQHE, and make predictions for experimentally measurable properties that can reveal the nature of this state. Furthermore, we propose that the "n[over ¯]2[over ¯]111" family of parton states naturally describes many observed SLL FQHE plateaus.
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MEDLINE
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En
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Phys Rev Lett
Ano de publicação:
2018
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Article