Ultrafast thermally induced magnetic switching in synthetic ferrimagnets

Evans, Richard F.L.; Ostler, Thomas A.; Chantrell, Roy W.; Radu, Ilie; Rasing, Theo

Abstract

Synthetic ferrimagnets are composite magnetic structures formed from two or more anti-ferromagnetically coupled magnetic sublattices with different magnetic moments. Here, we report on atomistic spin simulations of the laser-induced magnetization dynamics on such synthetic ferrimagnets and demonstrate that the application of ultrashort laser pulses leads to sub-picosecond magnetization dynamics and all-optical switching in a similar manner as in ferrimagnetic alloys. Moreover, we present the essential material properties for successful laser-induced switching, demonstrating the feasibility of using a synthetic ferrimagnet as a high density magnetic storage element without the need of a write field. © 2014 AIP Publishing LLC.

Citation

Evans, R. F., Ostler, T. A., Chantrell, R. W., Radu, I., & Rasing, T. (2014). Ultrafast thermally induced magnetic switching in synthetic ferrimagnets. Applied physics letters, 104(8), Article 082410. https://doi.org/10.1063/1.4867015

• Journal Article Type: Article
• Acceptance Date: Feb 10, 2014
• Online Publication Date: Feb 27, 2014
• Publication Date: Feb 24, 2014
• Deposit Date: Jun 15, 2022
• Journal: Applied Physics Letters
• Print ISSN: 0003-6951
• Publisher: American Institute of Physics
• Peer Reviewed: Peer Reviewed
• Volume: 104
• Issue: 8
• Article Number: 082410
• DOI: https://doi.org/10.1063/1.4867015
• Public URL: https://hull-repository.worktribe.com/output/4014589