Tang, Chunli;
Alahmed, Laith;
Mahdi, Muntasir;
Xiong, Yuzan;
Inman, Jerad;
McLaughlin, Nathan J;
Zollitsch, Christoph;
... Jin, Wencan; + view all
(2023)
Spin dynamics in van der Waals magnetic systems.
Physics Reports
, 1032
pp. 1-36.
10.1016/j.physrep.2023.09.002.
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Abstract
The discovery of atomic monolayer magnetic materials has stimulated intense research activities in the two-dimensional (2D) van der Waals (vdW) materials community. The field is growing rapidly and there has been a large class of 2D vdW magnetic compounds with unique properties, which provides an ideal platform to study magnetism in the atomically thin limit. In parallel, based on tunneling magnetoresistance and magneto-optical effect in 2D vdW magnets and their heterostructures, emerging concepts of spintronic and optoelectronic applications such as spin tunnel field-effect transistors and spin-filtering devices are explored. While the magnetic ground state has been extensively investigated, reliable characterization and control of spin dynamics play a crucial role in designing ultrafast spintronic devices. Ferromagnetic resonance (FMR) allows direct measurements of magnetic excitations, which provides insight into the key parameters of magnetic properties such as exchange interaction, magnetic anisotropy, gyromagnetic ratio, spin–orbit coupling, damping rate, and domain structure. In this review article, we present an overview of the essential progress in probing spin dynamics of 2D vdW magnets using FMR techniques. Given the dynamic nature of this field, we focus mainly on broadband FMR, optical FMR, and spin-torque FMR, and their applications in studying prototypical 2D vdW magnets. We conclude with the recent advances in laboratory- and synchrotron-based FMR techniques and their opportunities to broaden the horizon of research pathways into atomically thin magnets.
| Type: | Article |
|---|---|
| Title: | Spin dynamics in van der Waals magnetic systems |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.physrep.2023.09.002 |
| Publisher version: | https://doi.org/10.1016/j.physrep.2023.09.002 |
| Language: | English |
| Additional information: | Copyright © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/ licenses/by/4.0/). |
| Keywords: | Ferromagnetic resonance; Magnetization dynamics; Spin wave; Two-dimensional magnetism; van der Waals materials; Spintronics |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10180469 |
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