Spin Mode-Switching at the Edge of a Quantum Hall System

Abstract

Quantum Hall states can be characterized by their chiral edge modes. Upon softening the edge potential, the edge has long been known to undergo spontaneous reconstruction driven by charging effects. In this paper we demonstrate a qualitatively distinct phenomenon driven by exchange effects, in which the ordering of the edge modes at $\nu =3$ switches abruptly as the edge potential is made softer, while the ordering in the bulk remains intact. We demonstrate that this phenomenon is robust, and has many verifiable experimental signatures in transport.

arXiv comment5 pages + supplemental material

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Cited by in corpus (13)

• Fractional Edge Reconstruction in Integer Quantum Hall Phases
• Does shot noise always provide the quasiparticle charge?
• Emergence of Neutral Modes in Laughlin-like Fractional Quantum Hall Phases
• Emergence of spin-active channels at a quantum Hall interface
• Edge Reconstruction of a Time-Reversal Invariant Insulator: Compressible-Incompressible Stripes
• Dynamic nuclear polarization at high Landau levels in a quantum point contact
• Edge Reconstruction and Emergent Neutral Modes in Integer and Fractional Quantum Hall Phases
• Experimentally Motivated Order of Length Scales Affect Shot Noise
• Dc Electrical Current Generated by Upstream Neutral Modes
• Magnon transmission across $\nu =1|-1|1$ mono-layer graphene junction as a probe of electronic structure
• Sensing the binding and unbinding of anyons at impurities
• Conductance resonances and crossing of the edge channels in the quantum Hall ferromagnet state of Cd(Mn)Te microstructures
• Edge Reconstruction in a Quantum Spin Hall Insulator