Dipolar field-induced spin-wave waveguides for spin-torque magnonics

Journal Article · Mon Jan 12 00:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4905869· OSTI ID:22399115

Urazhdin, S.; Zholud, A. ^[1]; Sadovnikov, A. V. ^[2]; Demokritov, S. O. ^[2]

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1. Department of Physics, Emory University, 400 Dowman dr., Atlanta, Georgia 30322 (United States)
2. Department of Physics and Center for Nonlinear Science, University of Muenster, Corrensstr. 2-4, 48149 Muenster (Germany)

We use high-resolution imaging to study the propagation of spin waves in magnonic waveguides created by the dipolar magnetic fields of microscopic patterns. We show that the characteristics of spin-wave modes in such waveguides depend strongly on their geometry. In particular, by tuning the geometrical parameters, field-induced confinement for both the edge and the center waveguide modes can be achieved, enabling control over the spin-wave transmission characteristics. The studied waveguiding structures are particularly promising for the implementation of magnonic devices utilizing spin-torque phenomena.

• OSTI ID: 22399115
• Journal Information: Applied Physics Letters, Vol. 106, Issue 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONFINEMENT
CONTROL
IMPLEMENTATION
MAGNETIC FIELDS
MAGNONS
RESOLUTION
SPIN
SPIN WAVES
TORQUE
WAVE PROPAGATION
WAVEGUIDES