| dc.contributor.author | COEY, JOHN | en |
| dc.date.accessioned | 2014-11-24T16:22:48Z | |
| dc.date.available | 2014-11-24T16:22:48Z | |
| dc.date.issued | 2012 | en |
| dc.date.submitted | 2012 | en |
| dc.identifier.citation | Chen, JY, Feng, JF, Coey, JMD, Tunable linear magnetoresistance in MgO magnetic tunnel junction sensors using two pinned CoFeB electrodes, Applied Physics Letters, 100, 2012, 142407- | en |
| dc.identifier.other | Y | en |
| dc.description | PUBLISHED | en |
| dc.description.abstract | MgO-barrier magnetic tunnel junction sensors with both CoFeB layers pinned by IrMn have been
fabricated, which show a tunneling magnetoresistance (TMR) of up to 255% at room temperature.
The perpendicular configuration for magnetic field sensing is set using a two-step field annealing
process. The linear TMR field range and sensitivity are tuned by inserting an ultrathin Ru layer
between the upper IrMn and the top-pinned CoFeB layer. The field sensitivity reaches 26%/mT,
while the noise detectivity is about 90nT/
ffiffiffiffiffiffi
Hz
p
at 10Hz for a 0.3nm Ru insertion layer. The bias
dependence of the noise suggests that this is a useful design for sensor applications | en |
| dc.description.sponsorship | SFI NICE | en |
| dc.format.extent | 142407 | en |
| dc.language.iso | en | en |
| dc.relation.ispartofseries | Applied Physics Letters | en |
| dc.relation.ispartofseries | 100 | en |
| dc.rights | Y | en |
| dc.subject | Magnetic tunnel junctions | en |
| dc.title | Tunable linear magnetoresistance in MgO magnetic tunnel junction sensors using two pinned CoFeB electrodes | en |
| dc.type | Journal Article | 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 | 93642 | en |
| dc.identifier.doi | http://dx.doi.org/10.1063/1.3701277 | en |
| dc.rights.ecaccessrights | OpenAccess | |
| dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |
| dc.contributor.sponsorGrantNumber | (NISE) Pro- ject (10/IN1/I3002). | en |
| dc.identifier.uri | http://hdl.handle.net/2262/72165 | |
