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<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>ν</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn><mml:mo>/</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math>
 fractional quantum Hall effect in wide quantum wells

Zhao, Tongzhou; Faugno, W. N.; Pu, Songyang; Balram, Ajit C.; Jain, J. K.

doi:10.1103/physrevb.103.155306

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ν = 1 Skyrmion1

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2021

2024

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Cited by 12 publications

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“…8 even when LLM is present. This is because the LLM typically only makes a small modification on the energy and only breaks the PH symmetry slightly at experimental parameters [34][35][36][37] . Compared to the big energy discrepancy that we are concerned with throughout this article, Eq.…”

Section: ν = 1 Skyrmionmentioning

confidence: 99%

Fixed-phase diffusion Monte Carlo study of the activation gap and the skyrmion excitation of $ν=1$ system in the presence of charged impurities

Zhao

2021

Preprint

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The discrepancy between the theoretically calculated and experimentally measured activation gaps in quantum Hall effect has long been a puzzle. We revisit this issue in the context of the ν = 1 quantum Hall state, while also incorporating the skyrmion physics.We find that the finite width and the Landau level mixing (LLM) effects are not sufficient to explain the observed activation gap. We further show that the presence of charged impurities located adjacent to the quantum well can cause a significant reduction in the activation gap, while also causing a suppression of the skyrmion size.

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Section: ν = 1 Skyrmionmentioning

confidence: 99%