dc.contributor.author | COEY, JOHN | en |
dc.date.accessioned | 2014-11-24T16:22:08Z | |
dc.date.available | 2014-11-24T16:22:08Z | |
dc.date.issued | 2012 | en |
dc.date.submitted | 2012 | en |
dc.identifier.citation | Chen, JY, Carroll, N, Feng, JF, Coey, JMD, Yoke-shaped MgO-barrier magnetic tunnel junction sensors, Applied Physics Letters, 101, 26, 2012, 262402- | en |
dc.identifier.other | Y | en |
dc.identifier.uri | http://hdl.handle.net/2262/72164 | |
dc.description | PUBLISHED | en |
dc.description.abstract | Yoke-shaped sensors based on MgO-barrier magnetic tunnel junctions have been designed, fabricated, and studied; they show a good linear tunneling magnetoresistance (TMR) response. A nearly-perpendicular configuration of two ferromagnetic electrodes was set by two-step annealing together with shape anisotropy. The low-frequency noise characterization shows these yoke-shaped TMR sensors have relatively low magnetic 1/f noise. The field sensitivity is up to 27%/mT, while the field detectivity reaches 4.6 nT/Hz‾‾‾√ at 10 Hz and 460 pT/Hz‾‾‾√ at 1 kHz. These TMR sensors may be useful for applications such as biomagnetic detection. | en |
dc.description.sponsorship | The authors thank Bo Cui from University of Waterloo,
Canada, K. Oguz, H. Kurt, and D. M
enard for helpful discus-
sions. The work was supported by the EU as part of FP7
NAMDIATREAM Project and by Science Foundation Ire-
land as part of the Nanoscale Interface and Spin Electronics
(NISE) Project (10/IN1/I3006) | en |
dc.format.extent | 262402 | en |
dc.language.iso | en | en |
dc.relation.ispartofseries | Applied Physics Letters | en |
dc.relation.ispartofseries | 101 | en |
dc.relation.ispartofseries | 26 | en |
dc.rights | Y | en |
dc.subject | Magnetic tunnel junctions | en |
dc.title | Yoke-shaped MgO-barrier magnetic tunnel junction sensors | en |
dc.type | Journal Article | en |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/jcoey | en |
dc.identifier.rssinternalid | 93643 | en |
dc.identifier.doi | http://dx.doi.org/10.1063/1.4773180 | en |
dc.rights.ecaccessrights | OpenAccess | |
dc.contributor.sponsorGrantNumber | (NISE) Project (10/IN1/I3006) | en |