DocumentCode
1331872
Title
Manipulation of the Excitation State of the Coupled Vortices in a Pair of Magnetic Disks
Author
Sugimoto, Satoshi ; Fukuma, Y. ; Otani, Y.
Author_Institution
Inst. for Solid State Phys., Univ. of Tokyo, Kashiwa, Japan
Volume
47
Issue
10
fYear
2011
Firstpage
2951
Lastpage
2953
Abstract
Coupled gyration modes of the magnetic vortices are studied in two separated disks. We have experimentally detected that all four modes are selectively excited mainly by the spin-transfer torque, depending on the combination of their polarities and chiralities. The evaluated dipolar coupling intensity shows a certain decrease from the rigid vortex model.
Keywords
Permalloy; chirality; discs (structures); ferromagnetic materials; magnetisation; spin polarised transport; Ni81Fe19; chiralities; coupled gyration modes; coupled vortices; dipolar coupling intensity; excitation state; magnetic disk pair; magnetic vortices; magnetization; polarities; rigid vortex model; spin-transfer torque; Couplings; Magnetic cores; Magnetic domains; Magnetic resonance; Magnetic separation; Magnetostatics; Anisotropic magnetoresistance; magnetic domains; magnetic resonance; spin-polarized transport;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2011.2159367
Filename
6028139
Link To Document