| dc.contributor.author | COEY, JOHN MICHAEL DAVID | |
| dc.date.accessioned | 2009-08-14T10:22:13Z | |
| dc.date.available | 2009-08-14T10:22:13Z | |
| dc.date.issued | 2001 | |
| dc.date.submitted | 2001 | en |
| dc.identifier.citation | J J Versluijs, M A Bari and J. M. D. Coey 'Magnetoresistance of half-metallic oxide nanocontacts' in Physical Review Letters, 87, (2), 2001, pp 026601-026604 | en |
| dc.identifier.other | Y | en |
| dc.identifier.other | Y | |
| dc.description | PUBLISHED | en |
| dc.description.abstract | The conductivity of a nanocontact between two crystallites of magnetite (Fe3O4) was studied. It was found that the conductivity can increase sixfold at room temperature in an applied field of 7 mT (70 Oe). This large low-field effect was attributed to spin-polarized electrons hopping across a very narrow domain wall at the contact. Spin pressure on the domain wall at the nanocontact led to nonlinearity of the I(V) characteristic, and the possibility of fast switching in a bistable two- or three-terminal device via current-induced wall motion. | en |
| dc.description.sponsorship | This work was supported by the EU as part of the
AMORE project in the growth program, and by Enterprise
Ireland under Contract No. SC/99/225. | en |
| dc.format.extent | 026601-026604 | en |
| dc.format.extent | 121836 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en | en |
| dc.publisher | American Physical Society | en |
| dc.relation.ispartofseries | Physical Review Letters | en |
| dc.relation.ispartofseries | 87 | en |
| dc.relation.ispartofseries | 2 | en |
| dc.rights | Y | en |
| dc.subject | Physics | en |
| dc.title | Magnetoresistance of half-metallic oxide nanocontacts | 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 | |
| dc.identifier.rssinternalid | 4016 | |
| dc.contributor.sponsor | Enterprise Ireland | |
| dc.identifier.uri | http://hdl.handle.net/2262/31789 | |
