Magnetic textures and perpendicular anisotropy in asymmetric multilayers with Ta and W
Asymmetric (Pt/Co/X) multilayers where X is Ta or W have been investigated. Both structures showed a tailed hysteresis loop indicating the existence of skyrmions. The interfacial Dzyaloshinskii–Moriya interaction (iDMI) extracted from Brillouin light scattering revealed that sample with W has a value of −0.52 mJ/m2, which is ∼2.5 times larger than Ta case. In addition to iDMI, the perpendicular magnetic anisotropy is also stronger for W case due to the orbital hybridization at the interface. From magnetic force microscopy, W sample showed a change from unusual rod-like domains to skyrmions, while the change was from labyrinth domains to skyrmions in Ta-based structure.
Authors
- Salim Al Harthi
- S. N. Piramanayagam (ORCID: https://orcid.org/0000-0002-3178-2960)
- Ramu Maddu (ORCID: https://orcid.org/0000-0002-7080-9644)
- S. M. Chérif
- R. Sbiaa (ORCID: https://orcid.org/0000-0001-5314-7709)
- Sabpreet Bhatti (ORCID: https://orcid.org/0000-0001-9262-7705)
- Fatma Al Ma’Mari (ORCID: https://orcid.org/0000-0002-6207-1168)
- Shahad Al Shukaili
- Myo Tay Zar Myint (ORCID: https://orcid.org/0000-0002-9165-6261)
- Imane Berrai (ORCID: https://orcid.org/0009-0002-2427-0630)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Nanyang Technological University (SG)
- Sorbonne Université (FR)
- Université Sorbonne Paris Nord (FR)
- Sultan Qaboos University (OM)
Publication Details
- Journal
- Applied Physics Letters
- Published
- 2024-11-25
- DOI
- https://doi.org/10.1063/5.0239692
- Citations
- 2
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 0.68
Funders
- His Majesty’s Trust Fund
- National Research Foundation Singapore