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Conference Paper: Thermally Excited Mag-Noise in Ferromagnetic Ring Structures

TitleThermally Excited Mag-Noise in Ferromagnetic Ring Structures
Authors
Issue Date2014
PublisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=20
Citation
The 3rd International Symposium on Advanced Magnetic Materials and Applications (ISAMMA), Taiwan, 21-25 July 2013. In IEEE Transactions on Magnetics, 2014, v. 50 n. 1, p. article no. 2276696 How to Cite?
AbstractAs the dimension of magnetic devices drastically decreases to nanometer range, thermally excited mag-noise gradually becomes the dominant noise source. Thermally excited mag-noise plays an important role in ferromagnetic ring structures. By conductingmicromagnetic simulation, the saturated state, triangle state, half triangle state, onion state, and vortex state are explored and studied, respectively. The mag-noise calculation shows that triangle state is the main reason for the mag-noise exhibiting tendency in both the low-frequency range and high-frequency range in relaxed state, while the onion state explains why a noise peak appears in high-frequency range in relaxed state. Meanwhile, it is proved that the area of the ferromagnetic rings is not the determining factor for the mag-noise distribution in saturated state. These results offer the theoretical framework for explaining the relation between domain structure and mag-noise, which is conducive to the future application of ferromagnetic ring structures as magnetic random access memory elements.
DescriptionSession PE: Spin Dynamics and Micromagnetics
Persistent Identifierhttp://hdl.handle.net/10722/186749
ISSN
2015 Impact Factor: 1.277
2015 SCImago Journal Rankings: 0.602
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZeng, Ten_US
dc.contributor.authorZhou, Yen_US
dc.contributor.authorLin, KWen_US
dc.contributor.authorLai, PTen_US
dc.contributor.authorPong, PWTen_US
dc.date.accessioned2013-08-20T12:19:22Z-
dc.date.available2013-08-20T12:19:22Z-
dc.date.issued2014en_US
dc.identifier.citationThe 3rd International Symposium on Advanced Magnetic Materials and Applications (ISAMMA), Taiwan, 21-25 July 2013. In IEEE Transactions on Magnetics, 2014, v. 50 n. 1, p. article no. 2276696en_US
dc.identifier.issn0018-9464-
dc.identifier.urihttp://hdl.handle.net/10722/186749-
dc.descriptionSession PE: Spin Dynamics and Micromagnetics-
dc.description.abstractAs the dimension of magnetic devices drastically decreases to nanometer range, thermally excited mag-noise gradually becomes the dominant noise source. Thermally excited mag-noise plays an important role in ferromagnetic ring structures. By conductingmicromagnetic simulation, the saturated state, triangle state, half triangle state, onion state, and vortex state are explored and studied, respectively. The mag-noise calculation shows that triangle state is the main reason for the mag-noise exhibiting tendency in both the low-frequency range and high-frequency range in relaxed state, while the onion state explains why a noise peak appears in high-frequency range in relaxed state. Meanwhile, it is proved that the area of the ferromagnetic rings is not the determining factor for the mag-noise distribution in saturated state. These results offer the theoretical framework for explaining the relation between domain structure and mag-noise, which is conducive to the future application of ferromagnetic ring structures as magnetic random access memory elements.-
dc.languageengen_US
dc.publisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=20-
dc.relation.ispartofIEEE Transactions on Magneticsen_US
dc.rightsIEEE Transactions on Magnetics. Copyright © Institute of Electrical and Electronics Engineers.-
dc.rights©2014 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleThermally Excited Mag-Noise in Ferromagnetic Ring Structuresen_US
dc.typeConference_Paperen_US
dc.identifier.emailLai, PT: laip@eee.hku.hken_US
dc.identifier.emailPong, PWT: ppong@eee.hku.hken_US
dc.identifier.authorityLai, PT=rp00130en_US
dc.identifier.authorityPong, PWT=rp00217en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/TMAG.2013.2276696-
dc.identifier.scopuseid_2-s2.0-84904363605-
dc.identifier.hkuros220185en_US
dc.identifier.hkuros219868-
dc.identifier.hkuros230867-
dc.identifier.volume50-
dc.identifier.issue1-
dc.identifier.spagearticle no. 2276696-
dc.identifier.epagearticle no. 2276696-
dc.identifier.isiWOS:000330026800068-
dc.publisher.placeUnited States-

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