Magnonics is an emerging research area where magnons or spin waves are used as a medium of information processing. Efficient manipulation/gating of magnons on-chip is crucial for realization of logic circuitry and device integration. Here, we show a simple method for gating of the magnons in a magnetic wire based on the dipolar coupled chain of nanomagnets. Spin wave propagation has been directly measured using the micro-Brillouin light scattering technique. We observed a significant reduction of spin wave amplitude by switching the nanomagnets using microwave current through a coplanar waveguide, which was also used for spin wave generation. Microwave assisted magnetization switching has been probed using the magnetic force microscopy technique. The results have potential implications in the area of wave based devices for next generation high frequency communication technologies.
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20 April 2020
Research Article|
April 21 2020
Microwave assisted gating of spin wave propagation
Arabinda Haldar
;
Arabinda Haldar
a)
1
Department of Physics, Indian Institute of Technology Hyderabad
, Kandi 502285, Telangana, India
2
Department of Electrical and Computer Engineering, National University of Singapore
, Singapore 11757, Singapore
a)Author to whom correspondence should be addressed: arabinda@phy.iith.ac.in
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Adekunle Olusola Adeyeye
Adekunle Olusola Adeyeye
2
Department of Electrical and Computer Engineering, National University of Singapore
, Singapore 11757, Singapore
3
Department of Physics, Durham University
, South Road, Durham DH1 3LE, United Kingdom
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a)Author to whom correspondence should be addressed: arabinda@phy.iith.ac.in
Appl. Phys. Lett. 116, 162403 (2020)
Article history
Received:
March 07 2020
Accepted:
April 05 2020
Citation
Arabinda Haldar, Adekunle Olusola Adeyeye; Microwave assisted gating of spin wave propagation. Appl. Phys. Lett. 20 April 2020; 116 (16): 162403. https://doi.org/10.1063/5.0006945
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