Effects of Co layer thickness and annealing temperature on the magnetic properties of inverted [Pt/Co] multilayers
DC Field | Value | Language |
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dc.contributor.author | Lee, Tae Young | - |
dc.contributor.author | Won, Young Chan | - |
dc.contributor.author | Son, Dong Su | - |
dc.contributor.author | Lim, Sang Ho | - |
dc.contributor.author | Lee, Seong-Rae | - |
dc.date.accessioned | 2021-09-05T19:15:11Z | - |
dc.date.available | 2021-09-05T19:15:11Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2013-11-07 | - |
dc.identifier.issn | 0021-8979 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/101623 | - |
dc.description.abstract | The effects of Co layer thickness and annealing temperature on the perpendicular magnetic anisotropy (PMA) properties of inverted [Pt (0.2 nm)/Co (t(Co))](6) multilayers (where t(Co) indicates the thickness of the Co layer) have been investigated. The cross-sectional microstructure, as observed from the high-resolution transmission electron microscope images, shows a clear layered structure with atomically flat interfaces both in the as-deposited state as well as after annealing, indicating the interface effects for PMA. The effective PMA energy density (K-eff) increases significantly with an increase in t(Co) from 0.2 to 0.28 nm and then becomes almost saturated with further increases in t(Co), followed by a slight reduction at the highest Co thickness, t(Co) - 0.6 nm. In order to explain the t(Co) dependence on K-eff, the intrinsic PMA energy density (K-i) is calculated by additionally measuring a similar set of results for the saturation magnetization. The K-i value increases nearly linearly with the increase in t(Co) from 0.2 to 0.5 nm, followed by saturation at a higher t(Co) value of 0.6 nm. Owing to a close relationship between K-i and the quality of the interfaces, these results indicate a similar t(Co) dependence on the quality of the interfaces. This is further supported from the magnetic measurements of the samples annealed at the highest temperature of 500 degrees C, where a second phase is formed, which show a similar t(Co) dependence on the amount of the second phase. The K-i value is nearly independent of the annealing temperature at t(Co) <= 0.4 nm, above which a substantial reduction is observed, when the annealing temperature exceeds 500 degrees C. (c) 2013 AIP Publishing LLC. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER INST PHYSICS | - |
dc.subject | ANISOTROPY | - |
dc.subject | FILMS | - |
dc.title | Effects of Co layer thickness and annealing temperature on the magnetic properties of inverted [Pt/Co] multilayers | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lim, Sang Ho | - |
dc.contributor.affiliatedAuthor | Lee, Seong-Rae | - |
dc.identifier.doi | 10.1063/1.4829024 | - |
dc.identifier.scopusid | 2-s2.0-84888396878 | - |
dc.identifier.wosid | 000327591900040 | - |
dc.identifier.bibliographicCitation | JOURNAL OF APPLIED PHYSICS, v.114, no.17 | - |
dc.relation.isPartOf | JOURNAL OF APPLIED PHYSICS | - |
dc.citation.title | JOURNAL OF APPLIED PHYSICS | - |
dc.citation.volume | 114 | - |
dc.citation.number | 17 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | ANISOTROPY | - |
dc.subject.keywordPlus | FILMS | - |
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