Evidence for Topological Protection Derived from Six-Flux Composite Fermions

Haoyun Huang, Waseem Hussain, S. A. Myers, L. N. Pfeiffer, K. W. West, K. W. Baldwin and G. A. Csáthy ()
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Haoyun Huang: Purdue University
Waseem Hussain: Purdue University
S. A. Myers: Purdue University
L. N. Pfeiffer: Princeton University
K. W. West: Princeton University
K. W. Baldwin: Princeton University
G. A. Csáthy: Purdue University

Nature Communications, 2024, vol. 15, issue 1, 1-6

Abstract: Abstract The composite fermion theory opened a new chapter in understanding many-body correlations through the formation of emergent particles. The formation of two-flux and four-flux composite fermions is well established. While there are limited data linked to the formation of six-flux composite fermions, topological protection associated with them is conspicuously lacking. Here we report evidence for the formation of a quantized and gapped fractional quantum Hall state at the filling factor ν = 9/11, which we associate with the formation of six-flux composite fermions. Our result provides evidence for the most intricate composite fermion with six fluxes and expands the already diverse family of highly correlated topological phases with a new member that cannot be characterized by correlations present in other known members. Our observations pave the way towards the study of higher order correlations in the fractional quantum Hall regime.

Date: 2024
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DOI: 10.1038/s41467-024-45860-5

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