1. Ultrafast thermally induced magnetic switching in synthetic ferrimagnets.
- Author
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Evans, Richard F. L., Ostler, Thomas A., Chantrell, Roy W., Radu, Ilie, and Rasing, Theo
- Subjects
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MAGNETIC control , *FERRIMAGNETIC materials , *MAGNETIC structure , *MAGNETIC moments , *OPTICAL switching , *ULTRASHORT laser pulses , *MAGNETIZATION - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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