Unidirectional propagation of magnetostatic surface spin waves at a magnetic film surface
- Department of Electrical Engineering, University of California, Los Angeles, Los Angeles, California 90095 (United States)
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054 (China)
- Univerisité de Saint-Etienne, Université de Lyon, LT2C, 25 rue du Docteur Rémy Annino, 42000 Saint-Etienne (France)
An analytical expression for the amplitudes of magnetostatic surface spin waves (MSSWs) propagating in opposite directions at a magnetic film surface is presented. This shows that for a given magnetic field H, it is forbidden for an independent MSSW to propagate along the direction of −H{sup →}×n{sup →}, where n{sup →} is the surface normal. This unidirectional propagation property is confirmed by experiments with both permalloy and yttrium iron garnet films of different film thicknesses, and has implications in the design of spin-wave devices such as isolators and spin-wave diodes.
- OSTI ID:
- 22395478
- Journal Information:
- Applied Physics Letters, Vol. 105, Issue 23; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Propagation characteristics of the magnetostatic surface wave in the YBCO-YIG film-layered structure
Forward volume and surface magnetostatic modes in an yttrium iron garnet film for out-of-plane magnetic fields: Theory and experiment
MSSW and MSVW in a multilayered ferrimagnetic structure with an arbitrary orientation between two static magnetizations. [Magnetostatic surface waves and magnetostatic volume waves]
Journal Article
·
Thu Aug 01 00:00:00 EDT 1996
· IEEE Transactions on Microwave Theory and Techniques
·
OSTI ID:22395478
Forward volume and surface magnetostatic modes in an yttrium iron garnet film for out-of-plane magnetic fields: Theory and experiment
Journal Article
·
Thu Dec 28 00:00:00 EST 2017
· AIP Advances
·
OSTI ID:22395478
+2 more
MSSW and MSVW in a multilayered ferrimagnetic structure with an arbitrary orientation between two static magnetizations. [Magnetostatic surface waves and magnetostatic volume waves]
Journal Article
·
· IEEE Transactions on Microwave Theory and Techniques (Institute of Electrical and Electronics Engineers); (United States)
·
OSTI ID:22395478