Single-shot all-optical magnetization switching in in-plane magnetized magnetic tunnel junction
Single pulse All Optical Helicity-Independent Switching is demonstrated in an in-plane magnetized magnetic tunnel junction. A toggle switching of the 2 nm thick Co40Fe40B20 soft layer could be achieved by exchange coupling the Co40Fe40B20 with a 10 nm thick Co85Gd15 layer monitored by measuring the Tunnel magneto resistance of the device. The use of in plane magnetized electrodes relaxes the constrains linked to perpendicular magnetic anisotropy systems while achieving a tunneling magnetoresistance ratio exceeding 100%. The influence of the upper electrical electrode, which is opaque to the laser beam in this study, is also discussed.
Authors
- Junta Igarashi (ORCID: https://orcid.org/0000-0002-3436-1520)
- G. Malinowski (ORCID: https://orcid.org/0000-0003-1469-7438)
- J. Hohlfeld (ORCID: https://orcid.org/0000-0002-8861-6808)
- Jon Gorchon (ORCID: https://orcid.org/0000-0003-2578-0835)
- Jun‐Xiao Lin (ORCID: https://orcid.org/0000-0003-4763-8514)
- S. Mangin (ORCID: https://orcid.org/0000-0001-6046-0437)
- D. Lacour (ORCID: https://orcid.org/0000-0002-5871-8870)
- M. Hehn (ORCID: https://orcid.org/0000-0002-4240-5925)
- S. Geiskopf (ORCID: https://orcid.org/0009-0008-1868-6625)
Institutions
- Institut Jean Lamour (FR)
- National Institute of Advanced Industrial Science and Technology (JP)
- Université de Lorraine (FR)
Publication Details
- Journal
- Applied Physics Letters
- Published
- 2025-04-14
- DOI
- https://doi.org/10.1063/5.0254042
- Citations
- 3
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 3.74
Funders
- Japan Society for the Promotion of Science London
- European Cooperation in Science and Technology
- Agence Nationale de la Recherche
- Japan Society for the Promotion of Science