EVANS, Richard F. L., OSTLER, Thomas, CHANTRELL, Roy W., RADU, Ilie and RASING, Theo (2014). Ultrafast thermally induced magnetic switching in synthetic ferrimagnets. Applied Physics Letters, 104 (8), 082410. [Article]
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Evans et al. - 2014 - Ultrafast thermally induced magnetic switching in synthetic ferrimagnets.pdf - Published Version
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Evans et al. - 2014 - Ultrafast thermally induced magnetic switching in synthetic ferrimagnets.pdf - Published Version
Available under License All rights reserved.
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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.
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