| dc.contributor.author | COEY, JOHN MICHAEL DAVID | |
| dc.contributor.author | DIAO, ZHU | |
| dc.date.accessioned | 2010-04-27T11:27:20Z | |
| dc.date.available | 2010-04-27T11:27:20Z | |
| dc.date.issued | 2010 | |
| dc.date.submitted | 2010 | en |
| dc.identifier.citation | Diao, Z., Nowak, E.R., Feng, G., Coey, J.M.D., Magnetic noise in structured hard magnets , Physical Review Letters, 104, 4, 2010, art. no. 047202 | en |
| dc.identifier.other | Y | |
| dc.description | PUBLISHED | en |
| dc.description.abstract | The anomalous Hall effect of wires patterned from ?Co90Fe10=Pt?n multilayers, with 10 n 50, is
used to determine the magnetization process in a small volume of maze domains. Time-independent 1=f
noise appears in samples with a quality factor Q<1 at points on the hysteresis loop where the
magnetization reverses continuously. The magnetic noise is associated with reversible excursions of
segments of a domain wall 100 nm long. Barkhausen jumps are observed close to either the switching
field or the saturation field where the noise power spectrum varies as 1=f1:7, and its magnitude decays with
time. | en |
| dc.description.sponsorship | This work was supported by Science Foundation Ireland
as part of the MANSE project. It also forms part of the ESF
Spin Currents network which was supported by Enterprise
Ireland. E. R. N. acknowledges sabbatical support from the
University of Delaware and from DOE under Grant
No. DE-FG02-07ER46374. | en |
| dc.format.extent | art. no. 047202 | en |
| dc.language.iso | en | en |
| dc.relation.ispartofseries | Physical Review Letters; | |
| dc.relation.ispartofseries | 104; | |
| dc.relation.ispartofseries | 4; | |
| dc.rights | Y | en |
| dc.subject | Physics | |
| dc.title | Magnetic noise in structured hard magnets | 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.peoplefinderurl | http://people.tcd.ie/zdiao | |
| dc.identifier.rssinternalid | 65898 | |
| dc.contributor.sponsor | Science Foundation Ireland | |
| dc.contributor.sponsor | Enterprise Ireland | en |
| dc.identifier.uri | http://hdl.handle.net/2262/39192 | |
