Disorder and the quantum Hall ferromagnet

Abstract

The distinguishing feature of the quantum Hall ferromagnet is the identity between the electrical and topological charge densities of a spin distortion. In addition to the wealth of physics associated with Skyrmionic excitations of the quantum Hall ferromagnet, this identification permits a rather curious coupling of spinwaves to the disorder potential. A wavepacket of spinwaves has an associated, oscillating dipole charge distribution, due to the non-linear form of the topological density. We investigate the way in which this coupling modifies the conductivity and temperature dependence of magnetization of the quantum Hall ferromagnet.

5 pages, latex, 10 pictures included in the text

Cited by in corpus (10)

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• Spin textures, screening and excitations in dirty quantum Hall ferromagnets
• NMR Study of Large Skyrmions in Al_{0.13}Ga_{0.87}As Quantum Wells
• Quantum Hall to Insulator Transition in the Bilayer Quantum Hall Ferromagnet
• Localization of spinwaves in the quantum Hall ferromagnet
• Dirty quantum Hall ferromagnets and quantum Hall spin glasses
• Effects of Disorder and Interactions in the Quantum Hall Ferromagnet
• Disorder and interactions in quantum Hall ferromagnets: effects of disorder in Skyrmion physics