Ultrafast dynamical path for the switching of a ferrimagnet after femtosecond heating

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ATXITIA, U., OSTLER, Thomas, BARKER, J., EVANS, R. F L, CHANTRELL, R. W. and CHUBYKALO-FESENKO, O. (2013). Ultrafast dynamical path for the switching of a ferrimagnet after femtosecond heating. Physical Review B, 87 (22), p. 224417. [Article]

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15274:124946

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15274:124946

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Abstract

Ultrafast laser-induced magnetic switching in rare earth, transition metal ferrimagnetic alloys has recently been reported to occur by ultrafast heating alone. Using atomistic simulations and a ferrimagnetic Landau-Lifshitz-Bloch formalism, we demonstrate that for switching to occur it is necessary that angular momentum is transferred from the longitudinal to transverse magnetization components. This dynamical path leads to magnetization switching and subsequent ultrafast precession caused by the inter-sublattice exchange field on the nanoscale.

More Information

Official URL:

http://link.aps.org/doi/10.1103/PhysRevB.87.224417

Departments - Does NOT include content added after October 2018:

Faculty of Science, Technology and Arts > Department of Engineering and Mathematics

Page Range:

p. 224417

Identifiers

Identification Number:

10.1103/PhysRevB.87.224417

ORCID for Thomas Ostler: