| Magnetic imaging with femtosecond temporal resolution. | |
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MedLine Citation:
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PMID: 19655952 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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A scanning Kerr microscope with a temporal resolution of <230 fs and a spatial resolution of 210 nm is presented. Equipped with a large temporal and spatial scanning range of 8 ns and 320 microm, respectively, the microscope allows studying nonuniform magnetization dynamics on many different time scales over a large area. For demonstration, we study the magnetization dynamics in Fe/Gd multilayer dot arrays exhibiting a spin reorientation transition (SRT) on three different time scales, namely, femtosecond, picosecond, and nanosecond scales. The dynamics on all time scales varies from one dot to another. This is attributed to the high sensitivity of the SRT to the variations of the layer thicknesses and the Fe/Gd interface structure. |
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Authors:
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Jie Li; Min-Sang Lee; Wei He; Björn Redeker; Arndt Remhof; Edward Amaladass; Christoph Hassel; Thomas Eimüller |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Review of scientific instruments Volume: 80 ISSN: 1089-7623 ISO Abbreviation: Rev Sci Instrum Publication Date: 2009 Jul |
Date Detail:
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Created Date: 2009-08-06 Completed Date: 2009-10-09 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0405571 Medline TA: Rev Sci Instrum Country: United States |
Other Details:
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Languages: eng Pagination: 073703 Citation Subset: - |
Affiliation:
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Junior Research Group Magnetic Microscopy, Institute for Experimental Physics IV, Ruhr-University of Bochum, Universitätsstr. 150, D-44780 Bochum, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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