Graefe, Joachim and Gruszecki, Pawel and Zelent, Mateusz and Decker, Martin and Keskinbora, Kahraman and Noske, Matthias and Gawronski, Przemyslaw and Stoll, Hermann and Weigand, Markus and Krawczyk, Maciej and Back, Christian H. and Goering, Eberhard J. and Schuetz, Gisela (2020) Direct observation of spin-wave focusing by a Fresnel lens. PHYSICAL REVIEW B, 102 (2): 024420. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
Spin waves are discussed as promising information carrier for beyond complementary metal-oxide semiconductor data processing. One major challenge is guiding and steering of spin waves in a uniform film. Here, we explore the use of diffractive optics for these tasks by nanoscale real-space imaging using x-ray microscopy and careful analysis with micromagnetic simulations. We discuss the properties of the focused caustic beams that are generated by a Fresnel-type zone plate and demonstrate control and steering of the focal spot. Thus, we present a steerable and intense nanometer-sized spin-wave source. Potentially, this could be used to selectively illuminate magnonic devices like nano-oscillators.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FILMS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 18 Mar 2021 08:19 |
| Last Modified: | 18 Mar 2021 08:19 |
| URI: | https://pred.uni-regensburg.de/id/eprint/44205 |
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