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Robust fractional quantum Hall effect in the N=2 Landau level in bilayer graphene [PDF]

open access: yesNature Communications, 2016
Electron-electron interactions in many-body systems may manifest themselves through the fractional quantum Hall effect. Here, the authors perform transport measurements in bilayer graphene, and observe particle-hole symmetric fractional quantum Hall ...
Georgi Diankov   +11 more
doaj   +2 more sources

Two-particle time-domain interferometry in the fractional quantum Hall effect regime [PDF]

open access: yesNature Communications, 2022
Excitations of the fractional quantum Hall states are of great interest because they obey anyonic statistics, but electronic interferometers give contrasting results about their quantum coherence.
I. Taktak   +8 more
doaj   +2 more sources

Unconventional fractional quantum Hall effect in bilayer graphene [PDF]

open access: yesScientific Reports, 2017
Recent experimental progress in Hall measurements in bilayer graphene in the so-called open-face configuration of boron nitride encapsulated samples, together with the earlier technique of suspended samples, allows for precise observation of the ...
Janusz Edward Jacak
doaj   +2 more sources

Hierarchical wave function, Fock cyclic condition, and spin-statistics relation in the spin-singlet fractional quantum Hall effect [PDF]

open access: green, 1993
We construct the hierarchical wave function of the spin-singlet fractional quantum Hall effect, which turns out to satisfy Fock cyclic condition. The spin-statistics relation of the quasi-particles in the spin-singlet fractional quantum Hall effect is ...
Dingping Li
openalex   +3 more sources

Unconventional fractional quantum Hall effect in monolayer and bilayer graphene [PDF]

open access: yesScience and Technology of Advanced Materials, 2016
The commensurability condition is applied to determine the hierarchy of fractional fillings of Landau levels in monolayer and in bilayer graphene. The filling rates for fractional quantum Hall effect (FQHE) in graphene are found in the first three Landau
Janusz Jacak, Lucjan Jacak
doaj   +2 more sources

Fractional quantum Hall effect in CdTe [PDF]

open access: bronze, 2010
The fractional quantum Hall (FQH) effect is reported in a high mobility CdTe quantum well at mK temperatures. Fully-developed FQH states are observed at filling factor 4/3 and 5/3 and are found to be both spin-polarized ground state for which the lowest ...
B. A. Piot   +8 more
openalex   +5 more sources

Quantum Hall effect: from the drude conductivity model to the Chern-Simons field description

open access: yesRevista Brasileira de Ensino de Física, 2023
The goal of this article is to introduce the quantum Hall effect (QHE) from its classical roots to the quantum integer and fractional versions. This is a robust phenomenon with topological nature.
G. B. de Gracia, B.M. Pimentel
doaj   +1 more source

Fractionally charged anyons generated by topological path fusion of propagating electron in magnetic flux lattice

open access: yesNuclear Physics B, 2021
Anyon is collective excitation of two dimensional electron gas subjected to strong magnetic field, carrying fractional charges and exotic statistical character beyond fermion and boson.
Tieyan Si
doaj   +1 more source

Fractional transconductance via nonadiabatic topological Cooper pair pumping

open access: yesPhysical Review Research, 2023
Many robust physical phenomena in quantum physics are based on topological invariants arising due to intriguing geometrical properties of quantum states.
Hannes Weisbrich   +3 more
doaj   +1 more source

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