Enhanced perpendicular coercivity of ultrathin perpendicularly magnetized Tb–Fe–Co films on silicon substrates using a thin Pt underlayer
We have studied the effect of an additional thin Pt underlayer on the magnetic properties of ultrathin perpendicularly magnetized TbFeCo films grown on silicon substrates. We have demonstrated that the presence of a thin Pt underlayer can enhance the perpendicular coercivity of ultrathin TbFeCo film...
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| Format: | Article |
| Language: | English |
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Elsevier
2016-03-01
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| Series: | Journal of Science: Advanced Materials and Devices |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468217916300077 |
| _version_ | 1818982209798799360 |
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| author | Bang Do Hiroyuki Awano |
| author_facet | Bang Do Hiroyuki Awano |
| author_sort | Bang Do |
| collection | DOAJ |
| description | We have studied the effect of an additional thin Pt underlayer on the magnetic properties of ultrathin perpendicularly magnetized TbFeCo films grown on silicon substrates. We have demonstrated that the presence of a thin Pt underlayer can enhance the perpendicular coercivity of ultrathin TbFeCo films with thickness down to 1 nm while preserving their low saturation magnetization. This can be attributed to the hybridization of Pt and Co orbitals, which induces the strong interfacial perpendicular anisotropy of Co/Pt and/or CoFe/Pt. These characteristics are potentially useful to reduce the critical current density induced magnetization switching and enhance the thermal stability of a magnetic tunnel junction and the current-induced domain wall motion in a nanowire made out of the ultrathin TbFeCo magnetic layer. |
| first_indexed | 2024-12-20T17:43:35Z |
| format | Article |
| id | doaj.art-b36fe24738094d8d99657eb8af02dcdc |
| institution | Directory Open Access Journal |
| issn | 2468-2179 |
| language | English |
| last_indexed | 2024-12-20T17:43:35Z |
| publishDate | 2016-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Science: Advanced Materials and Devices |
| spelling | doaj.art-b36fe24738094d8d99657eb8af02dcdc2022-12-21T19:31:02ZengElsevierJournal of Science: Advanced Materials and Devices2468-21792016-03-0111576010.1016/j.jsamd.2016.03.001Enhanced perpendicular coercivity of ultrathin perpendicularly magnetized Tb–Fe–Co films on silicon substrates using a thin Pt underlayerBang Do0Hiroyuki Awano1Toyota Technological Institute, Nagoya 468-8511, JapanToyota Technological Institute, Nagoya 468-8511, JapanWe have studied the effect of an additional thin Pt underlayer on the magnetic properties of ultrathin perpendicularly magnetized TbFeCo films grown on silicon substrates. We have demonstrated that the presence of a thin Pt underlayer can enhance the perpendicular coercivity of ultrathin TbFeCo films with thickness down to 1 nm while preserving their low saturation magnetization. This can be attributed to the hybridization of Pt and Co orbitals, which induces the strong interfacial perpendicular anisotropy of Co/Pt and/or CoFe/Pt. These characteristics are potentially useful to reduce the critical current density induced magnetization switching and enhance the thermal stability of a magnetic tunnel junction and the current-induced domain wall motion in a nanowire made out of the ultrathin TbFeCo magnetic layer.http://www.sciencedirect.com/science/article/pii/S2468217916300077Perpendicular coercivityTb–Fe–CoPerpendicular magnetic anisotropy |
| spellingShingle | Bang Do Hiroyuki Awano Enhanced perpendicular coercivity of ultrathin perpendicularly magnetized Tb–Fe–Co films on silicon substrates using a thin Pt underlayer Journal of Science: Advanced Materials and Devices Perpendicular coercivity Tb–Fe–Co Perpendicular magnetic anisotropy |
| title | Enhanced perpendicular coercivity of ultrathin perpendicularly magnetized Tb–Fe–Co films on silicon substrates using a thin Pt underlayer |
| title_full | Enhanced perpendicular coercivity of ultrathin perpendicularly magnetized Tb–Fe–Co films on silicon substrates using a thin Pt underlayer |
| title_fullStr | Enhanced perpendicular coercivity of ultrathin perpendicularly magnetized Tb–Fe–Co films on silicon substrates using a thin Pt underlayer |
| title_full_unstemmed | Enhanced perpendicular coercivity of ultrathin perpendicularly magnetized Tb–Fe–Co films on silicon substrates using a thin Pt underlayer |
| title_short | Enhanced perpendicular coercivity of ultrathin perpendicularly magnetized Tb–Fe–Co films on silicon substrates using a thin Pt underlayer |
| title_sort | enhanced perpendicular coercivity of ultrathin perpendicularly magnetized tb fe co films on silicon substrates using a thin pt underlayer |
| topic | Perpendicular coercivity Tb–Fe–Co Perpendicular magnetic anisotropy |
| url | http://www.sciencedirect.com/science/article/pii/S2468217916300077 |
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