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Conference Paper: Angular dependence of low-frequency noise in Al2O3-based magnetic tunnel junction sensors with conetic alloy

TitleAngular dependence of low-frequency noise in Al2O3-based magnetic tunnel junction sensors with conetic alloy
Authors
KeywordsConetic
Low-frequency noise
Magnetic sensors
Magnetic tunnel junction (MTJ)
Angular dependence
Issue Date2012
PublisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=20
Citation
The IEEE International Magnetics Conference (INTERMAG 2012), Vancouver, BC., 7-11 May 2012. In IEEE Transactions on Magnetics, 2012, v. 48 n. 11, p. 3712-3714 How to Cite?
AbstractWe demonstrated the noise performances of Al 2O 3-based magnetic tunnel junction sensors (MTJs) in the low-frequency regimes. Conetic alloy Ni 77Fe 14 Cu 5Mo 4 was deposited as both the MTJ pinned layer and free layer because of its superb magnetically soft properties. A rotating magnetic field was employed to investigate the angular dependence of the MTJ low-frequency noise. Hooge parameter was applied for parameterizing the low-frequency noise. The measurement results demonstrate that the Hooge parameters are angular-dependent and they exhibit a linear relation with respect to the angular magnetoresistive susceptibility. It can be also observed that the Hooge parameters possess a higher value when the Conetic MTJs are in the region of antiparallel state. These results indicate that the magnetic fluctuations in the ferromagnetic layers contribute to the low-frequency noise level in Conetic MTJ sensors. © 2012 IEEE.
DescriptionThis journal issue contains selected papers from the 2012 International Magnetics (INTERMAG) Conference
Persistent Identifierhttp://hdl.handle.net/10722/165289
ISSN
2017 Impact Factor: 1.467
2015 SCImago Journal Rankings: 0.602
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLei, Zen_US
dc.contributor.authorZeng, Ten_US
dc.contributor.authorFeng, Gen_US
dc.contributor.authorChen, PJen_US
dc.contributor.authorLai, PTen_US
dc.contributor.authorPong, PWT-
dc.date.accessioned2012-09-20T08:16:43Z-
dc.date.available2012-09-20T08:16:43Z-
dc.date.issued2012en_US
dc.identifier.citationThe IEEE International Magnetics Conference (INTERMAG 2012), Vancouver, BC., 7-11 May 2012. In IEEE Transactions on Magnetics, 2012, v. 48 n. 11, p. 3712-3714en_US
dc.identifier.issn0018-9464-
dc.identifier.urihttp://hdl.handle.net/10722/165289-
dc.descriptionThis journal issue contains selected papers from the 2012 International Magnetics (INTERMAG) Conference-
dc.description.abstractWe demonstrated the noise performances of Al 2O 3-based magnetic tunnel junction sensors (MTJs) in the low-frequency regimes. Conetic alloy Ni 77Fe 14 Cu 5Mo 4 was deposited as both the MTJ pinned layer and free layer because of its superb magnetically soft properties. A rotating magnetic field was employed to investigate the angular dependence of the MTJ low-frequency noise. Hooge parameter was applied for parameterizing the low-frequency noise. The measurement results demonstrate that the Hooge parameters are angular-dependent and they exhibit a linear relation with respect to the angular magnetoresistive susceptibility. It can be also observed that the Hooge parameters possess a higher value when the Conetic MTJs are in the region of antiparallel state. These results indicate that the magnetic fluctuations in the ferromagnetic layers contribute to the low-frequency noise level in Conetic MTJ sensors. © 2012 IEEE.-
dc.languageengen_US
dc.publisherIEEE. 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.subjectConetic-
dc.subjectLow-frequency noise-
dc.subjectMagnetic sensors-
dc.subjectMagnetic tunnel junction (MTJ)-
dc.subjectAngular dependence-
dc.titleAngular dependence of low-frequency noise in Al2O3-based magnetic tunnel junction sensors with conetic alloyen_US
dc.typeConference_Paperen_US
dc.identifier.emailLei, Z: leizq@hku.hken_US
dc.identifier.emailZeng, T: tuizeng@hku.hken_US
dc.identifier.emailLai, PT: laip@eee.hku.hk-
dc.identifier.emailPong, PWT: ppong@hkucc.hku.hk-
dc.identifier.authorityLai, PT=rp00130en_US
dc.identifier.authorityPong, PWT=rp00217en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TMAG.2012.2196688-
dc.identifier.scopuseid_2-s2.0-84867764904-
dc.identifier.hkuros209748en_US
dc.identifier.hkuros219684-
dc.identifier.volume48-
dc.identifier.issue11-
dc.identifier.spage3712en_US
dc.identifier.epage3714en_US
dc.identifier.isiWOS:000310194400251-
dc.publisher.placeUnited States-
dc.description.otherThe IEEE International Magnetics Conference (INTERMAG 2012), Vancouver, BC., 7-11 May 2012. In IEEE Transactions on Magnetics, 2012, v. 48 n. 11, p. 3712-3714-

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