{ "id": "cond-mat/9901053", "version": "v1", "published": "1999-01-07T19:35:08.000Z", "updated": "1999-01-07T19:35:08.000Z", "title": "Topological defects and Goldstone excitations in domain walls between ferromagnetic quantum Hall effect liquids", "authors": [ "Vladimir I. Fal'ko", "S. V. Iordanskii" ], "comment": "4 pages, 1 fig", "journal": "PRL 82, 402 (1999)", "doi": "10.1103/PhysRevLett.82.402", "categories": [ "cond-mat.mes-hall", "cond-mat.dis-nn" ], "abstract": "It is shown that the low-energy spectrum of a ferromagnetic quantum Hall effect liquid in a system with a multi-domain structure generated by an inhomogeneous bare Zeeman splitting $\\epsilon_{Z}$ is formed by excitations localized at the walls between domains. For a step-like $\\epsilon_Z(r)$, the domain wall spectrum includes a spin-wave with a linear dispersion and a small gap due to spin-orbit coupling, and a low-energy topological defects. The latter are charged and may dominate in the transport under conditions that the percolation through the network of domain walls is provided.", "revisions": [ { "version": "v1", "updated": "1999-01-07T19:35:08.000Z" } ], "analyses": { "keywords": [ "ferromagnetic quantum hall effect liquid", "topological defects", "goldstone excitations", "domain wall spectrum" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }