Dynamic control of spin wave spectra using spin-polarized currents
Dynamic control of spin wave spectra using spin-polarized currents
We describe a method of controlling the spin wave spectra dynamically in a uniform nanostripe waveguide through spin-polarized currents. A stable periodic magnetization structure is observed when the current flows vertically through the center of nanostripe waveguide. After being excited, the spin wave is transmitted at the sides of the waveguide. Numerical simulations of spin-wave transmission and dispersion curves reveal a single, pronounced band gap. Moreover, the periodic magnetization structure can be turned on and off by the spin-polarized current. The switching process from full rejection to full transmission takes place within less than 3?ns. Thus, this type magnonic waveguide can be utilized for low-dissipation spin wave based filters
112405
Wang, Qi
ddfc62a2-708c-43b1-8eed-d68d4e87d96a
Zhang, Huaiwu
6ebfd9da-c2a8-464d-bc16-f24884b11d3d
Fangohr, Hans
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Bai, Faiming
e0255d74-ac73-40c0-a9cf-086336d96c54
Zhong, Zhiyong
75539880-bac1-4780-b3f3-99f08bc973ba
17 September 2014
Wang, Qi
ddfc62a2-708c-43b1-8eed-d68d4e87d96a
Zhang, Huaiwu
6ebfd9da-c2a8-464d-bc16-f24884b11d3d
Fangohr, Hans
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Bai, Faiming
e0255d74-ac73-40c0-a9cf-086336d96c54
Zhong, Zhiyong
75539880-bac1-4780-b3f3-99f08bc973ba
Wang, Qi, Zhang, Huaiwu, Fangohr, Hans, Bai, Faiming and Zhong, Zhiyong
(2014)
Dynamic control of spin wave spectra using spin-polarized currents.
Applied Physics Letters, 105 (11), .
(doi:10.1063/1.4896027).
Abstract
We describe a method of controlling the spin wave spectra dynamically in a uniform nanostripe waveguide through spin-polarized currents. A stable periodic magnetization structure is observed when the current flows vertically through the center of nanostripe waveguide. After being excited, the spin wave is transmitted at the sides of the waveguide. Numerical simulations of spin-wave transmission and dispersion curves reveal a single, pronounced band gap. Moreover, the periodic magnetization structure can be turned on and off by the spin-polarized current. The switching process from full rejection to full transmission takes place within less than 3?ns. Thus, this type magnonic waveguide can be utilized for low-dissipation spin wave based filters
Text
arxiv/papers/1409/1409.2421.pdf
- Accepted Manuscript
More information
Accepted/In Press date: 4 September 2014
Published date: 17 September 2014
Organisations:
Computational Engineering & Design Group
Identifiers
Local EPrints ID: 370301
URI: http://eprints.soton.ac.uk/id/eprint/370301
ISSN: 0003-6951
PURE UUID: 42ea294c-25e4-4d22-98ff-11f0755bf724
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Date deposited: 27 Oct 2014 14:18
Last modified: 15 Mar 2024 03:03
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Contributors
Author:
Qi Wang
Author:
Huaiwu Zhang
Author:
Faiming Bai
Author:
Zhiyong Zhong
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