{ "id": "1109.3090", "version": "v1", "published": "2011-09-14T14:32:10.000Z", "updated": "2011-09-14T14:32:10.000Z", "title": "Prediction of the Magnetotoroidic Effect from Atomistic Simulations", "authors": [ "Wei Ren", "L. Bellaiche" ], "journal": "Phys. Rev. Lett., 107, 127202 (2011)", "doi": "10.1103/PhysRevLett.107.127202", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "An effective Hamiltonian technique is used to investigate the effect of applying curled electric fields on physical properties of stress-free BiFeO3 dots being under open-circuit electrical boundary conditions. It is discovered that such fields can lead to a control of not only the magnitude but also the direction of the magnetization. On a microscopic point of view, such control originates from the field-induced transformation or switching of electrical vortices and their couplings with oxygen octahedral tilts and magnetic dipoles. This control involves striking intermediate states, and constitutes a novel phenomenon that can be termed as \"magnetotoroidic\" effect.", "revisions": [ { "version": "v1", "updated": "2011-09-14T14:32:10.000Z" } ], "analyses": { "subjects": [ "75.85.+t", "71.15.Pd", "75.75.-c", "77.80.Dj" ], "keywords": [ "atomistic simulations", "magnetotoroidic effect", "prediction", "open-circuit electrical boundary conditions", "oxygen octahedral tilts" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2011, "month": "Sep", "volume": 107, "number": 12, "pages": 127202 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011PhRvL.107l7202R" } } }