File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Conference Paper: Magnetic tunnel junction sensors with conetic alloy

TitleMagnetic tunnel junction sensors with conetic alloy
Authors
Keywords1/f Noise
Conetic
hard-axis bias field
magnetic sensor
magnetic tunnel junction (MTJ)
Issue Date2011
PublisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=20
Citation
The 2010 Asia-Pacific Data Storage Conference (APDSC'10), Hualien, Taiwan, 27-29 October 2010. In IEEE Transactions on Magnetics, 2011, v. 47 n. 3, p. 714-717 How to Cite?
AbstractAl 2O 3 magnetic tunneling junction (MTJ) sensors were fabricated with Conetic alloy Ni 77Fe 14Cu 5Mo 4 deposited as the free layer and pinned layer for its soft magnetic properties. It was observed that the Al 2O 3 MTJ sensors with Conetic exhibited relatively small easy-axis coercivity. Tunneling magnetoresistance (TMR) and noise measurements were carried out to characterize the sensors. TMR of 9.5% and Hooge parameter of 3.825 × 10 -7μm 2 were achieved without any hard-axis field. Hard-axis bias field was applied to eliminate the hysteresis and improve the linear field response of the MTJ sensor. The hysteresis was removed by applying an external magnetic field along the hard axis at 8 Oe and the sensor sensitivity was 0.4 %/Oe within a linear region at room temperature. The relationship between the Hooge parameter and hard-axis field was also investigated and the result demonstrated that the 1/f noise can be suppressed by an optimized hard-axis bias field. This work shows that it is feasible to use Conetic alloy as the soft magnetic layers in MTJ sensors for its small coercivity, and a hard-axis bias field can be used to linearize the sensor response and suppress the 1/f noise. © 2011 IEEE.
DescriptionThis journal issue contain selected papers of APDSC'10
Poster Session - F. Storage Applications and Others: PF-12
Persistent Identifierhttp://hdl.handle.net/10722/126200
ISSN
2015 Impact Factor: 1.277
2015 SCImago Journal Rankings: 0.602
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLei, ZQen_HK
dc.contributor.authorLi, GJen_HK
dc.contributor.authorEgelhoff Jr, WFen_HK
dc.contributor.authorLai, PTen_HK
dc.contributor.authorPong, PWTen_HK
dc.date.accessioned2010-10-31T12:15:13Z-
dc.date.available2010-10-31T12:15:13Z-
dc.date.issued2011en_HK
dc.identifier.citationThe 2010 Asia-Pacific Data Storage Conference (APDSC'10), Hualien, Taiwan, 27-29 October 2010. In IEEE Transactions on Magnetics, 2011, v. 47 n. 3, p. 714-717en_HK
dc.identifier.issn0018-9464en_HK
dc.identifier.urihttp://hdl.handle.net/10722/126200-
dc.descriptionThis journal issue contain selected papers of APDSC'10-
dc.descriptionPoster Session - F. Storage Applications and Others: PF-12-
dc.description.abstractAl 2O 3 magnetic tunneling junction (MTJ) sensors were fabricated with Conetic alloy Ni 77Fe 14Cu 5Mo 4 deposited as the free layer and pinned layer for its soft magnetic properties. It was observed that the Al 2O 3 MTJ sensors with Conetic exhibited relatively small easy-axis coercivity. Tunneling magnetoresistance (TMR) and noise measurements were carried out to characterize the sensors. TMR of 9.5% and Hooge parameter of 3.825 × 10 -7μm 2 were achieved without any hard-axis field. Hard-axis bias field was applied to eliminate the hysteresis and improve the linear field response of the MTJ sensor. The hysteresis was removed by applying an external magnetic field along the hard axis at 8 Oe and the sensor sensitivity was 0.4 %/Oe within a linear region at room temperature. The relationship between the Hooge parameter and hard-axis field was also investigated and the result demonstrated that the 1/f noise can be suppressed by an optimized hard-axis bias field. This work shows that it is feasible to use Conetic alloy as the soft magnetic layers in MTJ sensors for its small coercivity, and a hard-axis bias field can be used to linearize the sensor response and suppress the 1/f noise. © 2011 IEEE.en_HK
dc.languageengen_HK
dc.publisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=20en_HK
dc.relation.ispartofIEEE Transactions on Magneticsen_HK
dc.rightsIEEE Transactions on Magnetics. Copyright © IEEE.-
dc.rights©2011 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.subject1/f Noiseen_HK
dc.subjectConeticen_HK
dc.subjecthard-axis bias fielden_HK
dc.subjectmagnetic sensoren_HK
dc.subjectmagnetic tunnel junction (MTJ)en_HK
dc.titleMagnetic tunnel junction sensors with conetic alloyen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailLai, PT: laip@eee.hku.hken_HK
dc.identifier.emailPong, PWT: ppong@eee.hku.hken_HK
dc.identifier.authorityLai, PT=rp00130en_HK
dc.identifier.authorityPong, PWT=rp00217en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/TMAG.2010.2104136en_HK
dc.identifier.scopuseid_2-s2.0-79952170393en_HK
dc.identifier.hkuros176325en_HK
dc.identifier.hkuros176519-
dc.identifier.hkuros191530-
dc.identifier.hkuros220399-
dc.identifier.hkuros225732-
dc.identifier.hkuros227859-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79952170393&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume47en_HK
dc.identifier.issue3en_HK
dc.identifier.spage714en_HK
dc.identifier.epage717en_HK
dc.identifier.isiWOS:000287861800047-
dc.publisher.placeUnited Statesen_HK
dc.description.otherThe Asia-Pacific Data Storage Conference (APDSC'10), Hualien, Taiwan, 27-29 October 2010. In IEEE Transactions on Magnetics, 2011, v. 47 n. 3, p. 714-717-
dc.identifier.scopusauthoridLei, ZQ=37002974000en_HK
dc.identifier.scopusauthoridLi, GJ=37002991600en_HK
dc.identifier.scopusauthoridEgelhoff Jr, WF=7006151986en_HK
dc.identifier.scopusauthoridLai, PT=7202946460en_HK
dc.identifier.scopusauthoridPong, PWT=24071267900en_HK
dc.customcontrol.immutablesml 130904-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats