Mutual control of coherent spin waves and magnetic domain walls in a magnonic device
Abstract
The field of magnonics aims to use spin waves (SWs) and their associated quasiparticles—magnons—as carriers of information. Compared with the movement of charge in conventional electronics, a major advantage of SWs is reduced Joule heating. However, SWs are trickier to direct and control. Two groups now go a step further toward magnon-based devices. Han et al. show that in multilayer films, domain walls can be used to change the phase and magnitude of a spin wave. Wang et al. demonstrate how magnon currents can be used to switch the magnetization of an adjacent layer.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 29, 2019
- Source ID
- 10.1126/science.aau2610
Entities
People
- Jiahao Han
- Justin T Hou
- Luqiao Liu
- Pengxiang Zhang
- Saima A Siddiqui
Organizations
- Air Force Office of Scientific Research
- Massachusetts Institute of Technology
- National Science Foundation