Spins, charges and currents at Domain Walls in a Quantum Hall Ising Ferromagnet

Abstract

We study spin textures in a quantum Hall Ising ferromagnet. Domain walls between ferro and unpolarized states at $\nu =2$ are analyzed with a functional theory supported by a microscopic calculation. In a neutral wall, Hartree repulsion prevents the appearance of a fan phase provoked by a negative stiffness. For a charged system, electrons become trapped as solitons at the domain wall. The size and energy of the solitons are determined by both Hartree and spin-orbit interactions. Finally, we discuss how electrical transport takes place through the domain wall.

4 pages, 3 figures included

References in corpus (5)

• Resistance Spikes at Transitions between Quantum Hall Ferromagnets
• Electrically-Controlled Nuclear Spin Polarization and Relaxation by Quantum-Hall states
• Resistance spikes and domain wall loops in Ising quantum Hall ferromagnets
• Observation of a new phase transition between fully and partially polarized quantum Hall states with charge and spin gaps at $\nu =2/3$
• Interedge Phase Coherence in Quantum Hall Line Junctions

Cited by in corpus (16)

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• Wigner solids of domain wall skyrmions
• Quantum Hall ferromagnets, cooperative transport anisotropy, and the random field Ising model
• Dynamic Nuclear Polarization and Nuclear Magnetic Resonance in the Simplest Pseudospin Quantum Hall Ferromagnet
• Effects of Quantum-Well Inversion Asymmetry on Electron-Nuclear Spin Coupling in the Fractional Quantum Hall Regime
• Mesoscopic transport in electrostatically-defined spin-full channels in quantum Hall ferromagnets
• Spectral properties of rotating electrons in quantum dots and their relation to quantum Hall liquids
• Hysteretic resistance spikes in quantum Hall ferromagnets without domains
• Integral and fractional Quantum Hall Ising ferromagnets
• Role of chiral quantum Hall edge states in nuclear spin polarization
• Metastable phase in the quantum Hall ferromagnet
• Localized NMR Mediated by Electrical-Field-Induced Domain Wall Oscillation in Quantum-Hall-Ferromagnet Nanowire
• Pump-probe nuclear spin relaxation study of the quantum Hall ferromagnet at filling factor nu = 2
• Charge and spin textures of Ising quantum Hall ferromagnet domain walls
• Numerical Investigation on Asymmetric Bilayer System at Integer Filling Factor
• Topological stripelike coreless textures with inner incommensurability in two-dimensional Heisenberg antiferromagnet