Generation of a localised microwave magnetic field by coherent phonons in a ferromagnetic grating

Salasyuk, A.S.; Rudkovskaya, A.V.; Danilov, A.P.; Glavin, B.A.; Kukhtaruk, S.M.; Wang, M.; Rushforth, A.W.; Nekludova, P.A.; Sokolov, S.V.; Elistratov, A.A.; Yakovlev, D.R.; Bayer, M.; Akimov, Andrey V.; Scherbakov, A.V.

Abstract

A high-amplitude microwave magnetic field localized at the nanoscale is a desirable tool for various applications within the rapidly developing field of nanomagnetism. Here, we drive magnetization precession by coherent phonons in a metal ferromagnetic nanograting and generate ac-magnetic induction with extremely high amplitude (up to 10 mT) and nanometer scale localization in the grating grooves. We trigger the magnetization by a laser pulse which excites localized surface acoustic waves. The developed technique has prospective uses in several areas of research and technology, including spatially resolved access to spin states for quantum technologies.

Citation

Salasyuk, A., Rudkovskaya, A., Danilov, A., Glavin, B., Kukhtaruk, S., Wang, M., …Scherbakov, A. (2018). Generation of a localised microwave magnetic field by coherent phonons in a ferromagnetic grating. Physical Review B, 97(6), Article 060404. https://doi.org/10.1103/PhysRevB.97.060404

• Journal Article Type: Article
• Acceptance Date: Jan 29, 2018
• Online Publication Date: Feb 12, 2018
• Publication Date: Feb 1, 2018
• Deposit Date: Feb 1, 2018
• Publicly Available Date: Feb 1, 2018
• Journal: Physical Review B
• Print ISSN: 2469-9950
• Electronic ISSN: 2469-9969
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 97
• Issue: 6
• Article Number: 060404
• DOI: https://doi.org/10.1103/PhysRevB.97.060404
• Public URL: https://nottingham-repository.worktribe.com/output/909457
• Publisher URL: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.060404