Stability and competition with bubble phases of the fractional quantum Hall states in the second Landau level

ORAL

Abstract

The availability of improved quality samples and the achievement of exceedingly lower electron temperatures led to the discovery of an increasing number of fractional quantum Hall states in the second Landau level. While in the lowest Landau level fractional quantum Hall states develop in particle-hole conjugate pairs, in the second Landau level this is often not the case. For example, clear signatures of the $\nu=2+2/5$ fractional quantum Hall state can be seen at low temperatures, while its particle-hole conjugate state at $\nu=2+3/5$ does not develop. In this talk we reexamine these and other fractional quantum Hall states of the second Landau level in light of their competition with the electronic bubble phases.
The work at Purdue was supported by the NSF grant DMR-1505866. L.N.P. and K.W.W. acknowledge the Gordon and Betty Moore Foundation Grant No. GBMF 4420, and the National Science Foundation MRSEC Grant No. DMR-1420541.

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Presenters

  • Vidhi Shingla

    Physics and Astronomy, Purdue Univ

Authors

  • Vidhi Shingla

    Physics and Astronomy, Purdue Univ

  • Ashwani Kumar

    Monmouth College

  • Loren Pfeiffer

    Electrical Engineering, princeton university, Department of Electrical Engineering, Princeton University, Princeton University, Princeton Univ, Electrical Engineering, Princeton Univ, EE, Princeton University

  • K West

    Electrical Engineering, princeton university, Department of Electrical Engineering, Princeton University, Princeton University, Univ of Basel, Princeton Univ, Electrical Engineering, Princeton Univ, EE, Princeton University

  • Gabor Csathy

    Physics and Astronomy, Purdue University, Physics and Astronomy, Purdue Univ