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Article: Intergranular coupling and activation volume of Co-Ni ferrite thin films with high coercivity above 3 kOe

TitleIntergranular coupling and activation volume of Co-Ni ferrite thin films with high coercivity above 3 kOe
Authors
KeywordsActivation Volume
Co-Ni Ferrite
Ferrite Plating
Intergranular Coupling
Magnetic Recording Media
Issue Date1999
PublisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=20
Citation
Ieee Transactions On Magnetics, 1999, v. 35 n. 5 PART 1, p. 2694-2696 How to Cite?
AbstractCo-Ni ferrite film media with high coercivity above 3 kOe were fabricated by ferrite plating and intergranular coupling and medium noise were discussed. Increase of Co content in Co-Ni ferrite thin film with a thickness of 40 nm led to a decrease of intergranular exchange coupling and activation volume, resulting in the reduction of media noise in the high frequency region. The coercivity H c increased with the Co content, and reached 3.6 kOe. At the maximum Co content, the activation volume took the minimum value of 6.7×10 -18 cm 3, being smaller than the volume of a single grain in the film. The medium noise was kept almost constant up to the linear recording density of 144 kfrpi, while the noise of the media with the lower Co content and lower H c increased with the linear recording density. © 1999 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/174782
ISSN
2015 Impact Factor: 1.277
2015 SCImago Journal Rankings: 0.602
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorKitamoto, Yen_US
dc.contributor.authorZhang, Fen_US
dc.contributor.authorKantake, Sen_US
dc.contributor.authorShirasaki, Fen_US
dc.contributor.authorAbe, Men_US
dc.contributor.authorNaoe, Men_US
dc.date.accessioned2012-11-26T08:47:25Z-
dc.date.available2012-11-26T08:47:25Z-
dc.date.issued1999en_US
dc.identifier.citationIeee Transactions On Magnetics, 1999, v. 35 n. 5 PART 1, p. 2694-2696en_US
dc.identifier.issn0018-9464en_US
dc.identifier.urihttp://hdl.handle.net/10722/174782-
dc.description.abstractCo-Ni ferrite film media with high coercivity above 3 kOe were fabricated by ferrite plating and intergranular coupling and medium noise were discussed. Increase of Co content in Co-Ni ferrite thin film with a thickness of 40 nm led to a decrease of intergranular exchange coupling and activation volume, resulting in the reduction of media noise in the high frequency region. The coercivity H c increased with the Co content, and reached 3.6 kOe. At the maximum Co content, the activation volume took the minimum value of 6.7×10 -18 cm 3, being smaller than the volume of a single grain in the film. The medium noise was kept almost constant up to the linear recording density of 144 kfrpi, while the noise of the media with the lower Co content and lower H c increased with the linear recording density. © 1999 IEEE.en_US
dc.languageengen_US
dc.publisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=20en_US
dc.relation.ispartofIEEE Transactions on Magneticsen_US
dc.subjectActivation Volumeen_US
dc.subjectCo-Ni Ferriteen_US
dc.subjectFerrite Platingen_US
dc.subjectIntergranular Couplingen_US
dc.subjectMagnetic Recording Mediaen_US
dc.titleIntergranular coupling and activation volume of Co-Ni ferrite thin films with high coercivity above 3 kOeen_US
dc.typeArticleen_US
dc.identifier.emailZhang, F: fuchun@hkucc.hku.hken_US
dc.identifier.authorityZhang, F=rp00840en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/20.800954en_US
dc.identifier.scopuseid_2-s2.0-0033184144en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033184144&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume35en_US
dc.identifier.issue5 PART 1en_US
dc.identifier.spage2694en_US
dc.identifier.epage2696en_US
dc.identifier.isiWOS:000083151100153-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridKitamoto, Y=7006209500en_US
dc.identifier.scopusauthoridZhang, F=14012468800en_US
dc.identifier.scopusauthoridKantake, S=7801632320en_US
dc.identifier.scopusauthoridShirasaki, F=23026214400en_US
dc.identifier.scopusauthoridAbe, M=35399559100en_US
dc.identifier.scopusauthoridNaoe, M=35467285400en_US

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