Moreno, R., Ostler, T. A. orcid.org/0000-0002-1328-1839, Chantrell, R. W. orcid.org/0000-0001-5410-5615 et al. (1 more author) (2017) Conditions for thermally induced all-optical switching in ferrimagnetic alloys:Modeling of TbCo. Physical Review B. 014409. ISSN 2469-9969
Abstract
We present atomistic spin dynamics modeling of thermally induced magnetization switching (TIMS) of disordered ferrimagnetic TbCo alloys varying the Tb concentration, laser pulse fluence, and its duration. Our results indicate that deterministic TIMS occurs in a wide range of Tb concentrations and at large laser fluences with a pulse duration of 50 fs. We furthermore demonstrate that the occurrence of the transient ferromagneticlike state is necessary, but after first reversal, the system may switch back. The presence of a magnetization compensation point or going through it is shown not to be required. With the increase of the laser pulse duration TIMS becomes stochastic so that for a 1 ps laser pulse width and beyond the deterministic heat-assisted AOS does not exist.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | ©2017 American Physical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details |
Dates: |
|
Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 23 Aug 2017 08:45 |
Last Modified: | 16 Oct 2024 14:00 |
Published Version: | https://doi.org/10.1103/PhysRevB.96.014409 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevB.96.014409 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:120497 |
Download
Filename: RobertoChantrell.pdf
Description: Conditions for thermally induced all-optical switching in ferrimagnetic alloys: Modeling of TbCo