Variation of effective damping factor for CoPt-based alloy films with various atomic stacking structures
Ferromagnetic resonance (FMR) was observed for Co82Pt12 films with various process. And relation between effective damping factor (αeff) and compositional modulation (CM) in the atomic layers, and other magnetic properties to investigate the relationship between local variation of the magnetic prope...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2017-05-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4978638 |
| _version_ | 1818863509384986624 |
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| author | Sintaro Hinata Shin Saito |
| author_facet | Sintaro Hinata Shin Saito |
| author_sort | Sintaro Hinata |
| collection | DOAJ |
| description | Ferromagnetic resonance (FMR) was observed for Co82Pt12 films with various process. And relation between effective damping factor (αeff) and compositional modulation (CM) in the atomic layers, and other magnetic properties to investigate the relationship between local variation of the magnetic properties and the αeff. The CM was changed by the substrate temperature Tsub and deposition rate of the Co-Pt alloy film. As a result, it was found that 1) For the Tsub dependence, αeff took maximum value of 0.22 at Tsub = 200 oC. 2) For the rate dependence, aeff linearly increases with 0.12 to 0.35 with increasing deposition rate from 0.3 to 2.0 nm/sec. 3) There was no similar tendency between aeff and CM for the Co-Pt alloy film with Tsub and rate change. Thus the CM is not dominant factor of the aeff for the compositionally modulated Co-Pt alloy film. |
| first_indexed | 2024-12-19T10:16:53Z |
| format | Article |
| id | doaj.art-64e7f522d1dc43099eddf8c11ca1637c |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-19T10:16:53Z |
| publishDate | 2017-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-64e7f522d1dc43099eddf8c11ca1637c2022-12-21T20:26:11ZengAIP Publishing LLCAIP Advances2158-32262017-05-0175056519056519-810.1063/1.4978638364791ADVVariation of effective damping factor for CoPt-based alloy films with various atomic stacking structuresSintaro Hinata0Shin Saito1Department of Electronic Engineering, Tohoku University, 6-6-05, Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanDepartment of Electronic Engineering, Tohoku University, 6-6-05, Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanFerromagnetic resonance (FMR) was observed for Co82Pt12 films with various process. And relation between effective damping factor (αeff) and compositional modulation (CM) in the atomic layers, and other magnetic properties to investigate the relationship between local variation of the magnetic properties and the αeff. The CM was changed by the substrate temperature Tsub and deposition rate of the Co-Pt alloy film. As a result, it was found that 1) For the Tsub dependence, αeff took maximum value of 0.22 at Tsub = 200 oC. 2) For the rate dependence, aeff linearly increases with 0.12 to 0.35 with increasing deposition rate from 0.3 to 2.0 nm/sec. 3) There was no similar tendency between aeff and CM for the Co-Pt alloy film with Tsub and rate change. Thus the CM is not dominant factor of the aeff for the compositionally modulated Co-Pt alloy film.http://dx.doi.org/10.1063/1.4978638 |
| spellingShingle | Sintaro Hinata Shin Saito Variation of effective damping factor for CoPt-based alloy films with various atomic stacking structures AIP Advances |
| title | Variation of effective damping factor for CoPt-based alloy films with various atomic stacking structures |
| title_full | Variation of effective damping factor for CoPt-based alloy films with various atomic stacking structures |
| title_fullStr | Variation of effective damping factor for CoPt-based alloy films with various atomic stacking structures |
| title_full_unstemmed | Variation of effective damping factor for CoPt-based alloy films with various atomic stacking structures |
| title_short | Variation of effective damping factor for CoPt-based alloy films with various atomic stacking structures |
| title_sort | variation of effective damping factor for copt based alloy films with various atomic stacking structures |
| url | http://dx.doi.org/10.1063/1.4978638 |
| work_keys_str_mv | AT sintarohinata variationofeffectivedampingfactorforcoptbasedalloyfilmswithvariousatomicstackingstructures AT shinsaito variationofeffectivedampingfactorforcoptbasedalloyfilmswithvariousatomicstackingstructures |