Journal
APPLIED PHYSICS LETTERS
Volume 100, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4704563
Keywords
magnetic microwave devices; micromagnetics; nanomagnetics; spin waves
Categories
Funding
- Deutsche Forschungsgemeinschaft
- European Project Master [NMP-FP7 212257]
- NSF [DMR-0747609, ECCS-0967195]
- Research Corporation
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1218419] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1218414] Funding Source: National Science Foundation
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In the emerging field of magnonics, spin waves are utilized as a medium for high-speed transmission and processing of electrical signals on the nanometer scale. The implementation of high-performance magnonic devices requires efficient nano-scaled sources of spin waves. Here, we demonstrate experimentally that this goal can be accomplished by utilizing a modified design of spin-torque devices, in which the internal dipolar field is compensated in the active device area by a built-in micromagnet. We show experimentally that the proposed device geometry enables efficient emission of spin waves with a large propagation length for practical implementation of integrated magnonic circuits. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4704563]
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