Asymmetry of the magnetization reversal mechanism probed by relaxation measurements in La-Ca-Mn-O ferromagnetic/antiferromagnetic multilayers
| dc.contributor.author | Panagiotopoulos, I. | en |
| dc.contributor.author | Moutis, N. | en |
| dc.contributor.author | Christides, C. | en |
| dc.date.accessioned | 2015-11-24T17:32:14Z | |
| dc.date.available | 2015-11-24T17:32:14Z | |
| dc.identifier.issn | 1098-0121 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/13694 | |
| dc.rights | Default Licence | - |
| dc.subject | ferromagnet-antiferromagnet bilayers | en |
| dc.subject | exchange bias | en |
| dc.subject | la2/3ca1/3mno3/la1/3ca2/3mno3 multilayers | en |
| dc.subject | viscosity | en |
| dc.subject | temperature | en |
| dc.subject | dependence | en |
| dc.title | Asymmetry of the magnetization reversal mechanism probed by relaxation measurements in La-Ca-Mn-O ferromagnetic/antiferromagnetic multilayers | en |
| heal.abstract | In exchange-coupled ferromagnetic/antiferromagnetic La0.60Ca0.40MnO3(FM)/La0.33Ca0.67MnO3(AF) multilayers the magnetization reversal mechanism is probed by magnetic viscosity and remanence measurements below (5 K) and above (80 K) the blocking temperature T-B=70 K. The magnetic relaxation follows the ln(t) behavior at 5 K, which is a universal feature of a slow relaxation process, whereas at 80 K the time decay requires an additional exponential term. Below T-B, the observed loop asymmetries in the irreversible susceptibility (chi(irr)) and the magnetic viscosity (S) reveal two inequivalent reversal mechanisms between the field increasing and field decreasing branches of the hysteresis loop. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | Doi 10.1103/Physrevb.65.132407 | - |
| heal.identifier.secondary | <Go to ISI>://000174903900015 | - |
| heal.journalName | Physical Review B | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2002 | - |
| heal.publisher | The American Physical Society | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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