Route to minimally dissipative switching in magnets via terahertz phonon pumping

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STRUNGARU, Mara, ELLIS, Matthew OA, RUTA, Sergiu, EVANS, Richard FL, CHANTRELL, Roy W and CHUBYKALO-FESENKO, Oksana (2024). Route to minimally dissipative switching in magnets via terahertz phonon pumping. Physical Review B, 109 (22): 224412. [Article]

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Abstract

Ultrafast switching of magnetic materials has been shown to be predominantly thermally driven, but excess heating limits the energy efficiency of this process. By employing atomistic spin-lattice dynamics simulations, we show that efficient coherent magnetization switching of an insulating magnet can be triggered by a THz excitation of phonons. We find that switching is driven by excitation near the

More Information

Official URL:

http://dx.doi.org/10.1103/physrevb.109.224412

Open Access URL:

https://journals.aps.org/prb/pdf/10.1103/PhysRevB....

Open Access Version:

Published version

Uncontrolled Keywords:

34 Chemical sciences; 40 Engineering; 51 Physical sciences

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Identification Number:

10.1103/physrevb.109.224412