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dc.contributor.authorZhu, Xiaobin
dc.contributor.authorGrütter, P.
dc.contributor.authorMetlushko, V.
dc.contributor.authorIlic, B.
dc.date.accessioned2012-03-15T21:25:38Z
dc.date.available2012-03-15T21:25:38Z
dc.date.issued2002-06-24
dc.identifier.bibliographicCitationZhu, X., Grütter, P., Metlushko, V., & Ilic, B. 2002. Magnetization reversal and configurational anisotropy of dense permalloy dot arrays. Applied Physics Letters, 80(25): 4789-4791. DOI: 10.1063/1.1489720en
dc.identifier.issn0003-6951
dc.identifier.otherDOI: 10.1063/1.1489720
dc.identifier.urihttp://hdl.handle.net/10027/8207
dc.description© 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Zhu, X., Grütter, P., Metlushko, V., & Ilic, B. 2002. Magnetization reversal and configurational anisotropy of dense permalloy dot arrays. Applied Physics Letters, 80(25): 4789-4791. and may be found at http://apl.aip. DOI: 10.1063/1.1489720en
dc.description.abstractElectron beam patterned permalloy circular dots of 700 nm diameter with small separations were studied by magnetic force microscopy (MFM) in the presence of an in situ magnetic field. Images in the demagnetized state show that the dot is in a vortex state with a vortex core (singularity) in the center. Local hysteresis loops, measured by cantilever frequency shift in an external field, indicate that the magnetization reversal of individual disks is a vortex nucleation and annihilation process. By carefully doing MFM, nucleation and annihilation fields without MFM tip stray field distortions are obtained. Configurational anisotropy originated from magnetostatic coupling is found through hysteresis loops.en
dc.description.sponsorshipThis work at McGill was supported by grants from NSERC of Canada and FCAR of Québec. This work at UIC was supported by the U.S. NSF Grant No. ECS-0202780 (V.M.).en
dc.language.isoen_USen
dc.publisherAmerican Institute of Physicsen
dc.subjectpermalloyen
dc.subjectmagnetizationen
dc.titleMagnetization Reversal and Configurational Anisotropy of Dense Permalloy Dot Arraysen
dc.typeArticleen


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