| Direct observation of spin-torque driven magnetization reversal through nonuniform modes. | |
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MedLine Citation:
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PMID: 18643621 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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We present time-resolved x-ray images with 30 nm spatial and 70 ps temporal resolution, which reveal details of the spatially resolved magnetization evolution in nanoscale samples of various dimensions during reversible spin-torque switching processes. Our data in conjunction with micromagnetic simulations suggest a simple unified picture of magnetic switching based on the motion of a magnetic vortex. With decreasing size of the magnetic element the path of the vortex core moves from inside to outside of the nanoelement, and the switching process evolves from a curled nonuniform to an increasingly uniform mode. |
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Authors:
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J P Strachan; V Chembrolu; Y Acremann; X W Yu; A A Tulapurkar; T Tyliszczak; J A Katine; M J Carey; M R Scheinfein; H C Siegmann; J Stöhr |
Publication Detail:
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Type: Journal Article Date: 2008-06-16 |
Journal Detail:
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Title: Physical review letters Volume: 100 ISSN: 0031-9007 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2008 Jun |
Date Detail:
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Created Date: 2008-07-22 Completed Date: 2008-08-12 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 247201 Citation Subset: - |
Affiliation:
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Department of Applied Physics, Stanford University, Stanford, California 94305, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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