Edge reconstruction of compressible Quantum Hall fluid in the filling fraction range 1/3 to 2/3

Abstract

Edge reconstruction of gate-tunable compressible quantum Hall fluids in the filling fraction range 1/3 to 2/3 is studied by measuring transmitted conductance of two individually excited fractional $e^2/3h$ edge modes of bulk 2/3 fractional quantum Hall fluid. Our findings reveal that the measured transmitted conductance deviates from the fully equilibrated value for the filling fraction range 1/3 to 2/3 of the gate-tunable compressible quantum Hall fluids at higher magnetic fields. This observation suggests that at the boundary of the compressible fluid a reconstructed $e^2/3h$ fractional edge mode is present and the mode does not completely equilibrate with the inner dissipative bulk region. Consequently, this outer reconstructed edge mode supports adiabatic charge transport, allowing non-equilibrated current transport through the compressible region. These studies open new avenues for achieving robust fractional edge modes even in compressible quantum Hall fluids under strong magnetic fields, enhancing our understanding of edge state dynamics in these complex systems.

9 pages, 5 figures

References in corpus (18)

• Observation of neutral modes in the fractional quantum Hall regime
• Melting of interference in the fractional quantum Hall effect: Appearance of neutral modes
• Anyonic interference and braiding phase in a Mach-Zehnder Interferometer
• Observation of ballistic upstream modes at fractional quantum Hall edges of graphene
• Fractional Edge Reconstruction in Integer Quantum Hall Phases
• Universal chiral Luttinger liquid behavior in a graphene fractional quantum Hall point contact
• Gating of high-mobility two-dimensional electron gases in GaAs/AlGaAs heterostructures
• Theoretical investigation of edge reconstruction in the $\nu$=5/2 and 7/3 fractional quantum Hall states
• Composite-fermion pairing at half and quarter filled lowest Landau level
• Microscopic Study of Edge Excitations of Spin-Polarized and Spin-Unpolarized $\nu =2/3$ Fractional Quantum Hall Effect
• $\nu =1/2$ Fractional Quantum Hall Effect in Tilted Magnetic Fields
• Charge equilibration in integer and fractional quantum Hall edge channels in a generalized Hall-bar device
• Half-integer conductance plateau at the $\nu =2/3$ fractional quantum Hall state in a quantum point contact
• Origin of the $\nu =1/2$ fractional quantum Hall effect in wide quantum wells
• Magnetic field dependent equilibration of fractional quantum Hall edge modes
• Energy spectrum reconstruction at the edge of a two-dimensional electron system with strong spin-orbit coupling
• Anomalous Aharonov-Bohm Interference in the Presence of Edge Reconstruction
• Temperature dependent equilibration of spin orthogonal quantum Hall edge modes

Cited by in corpus (1)

• Collapse of edge reconstruction in compressible Quantum Hall fluid within filling fraction range 2/3 to 1