Spin Hall controlled magnonic microwaveguides

Journal Article · Mon Apr 14 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4871519· OSTI ID:22262630

Urazhdin, S. ^[1]; Rinkevich, A. B. ^[2]; Reiss, G. ^[3]; Demokritov, S. O. ^[4]

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1. Department of Physics, Emory University, Atlanta, Georgia 30322 (United States)
2. Institute of Metal Physics, Ural Division of RAS, Yekaterinburg 620041 (Russian Federation)
3. Department of Physics, Bielefeld University, 33615 Bielefeld (Germany)
4. Institute for Applied Physics and Center for Nonlinear Science, University of Muenster, Corrensstrasse 2-4, 48149 Muenster (Germany)

We use space-resolved magneto-optical spectroscopy to study the influence of spin Hall effect on the excitation and propagation of spin waves in microscopic magnonic waveguides. We find that the spin Hall effect not only increases the spin-wave propagation length, but also results in an increased excitation efficiency due to the increase of the dynamic susceptibility in the vicinity of the inductive antenna. We show that the efficiency of the propagation length enhancement is strongly dependant on the type of the excited spin-wave mode and its wavelength.

• OSTI ID: 22262630
• Journal Information: Applied Physics Letters, Vol. 104, Issue 15; 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

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
EFFICIENCY
EXCITATION
HALL EFFECT
SPIN
SPIN WAVES
WAVEGUIDES