Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling
Spin-wave nonreciprocity arising from dipole-dipole interaction is insignificant for magnon wavelengths in the sub-100 nm range. Our micromagnetic simulations reveal that for the nanoscale magnonic crystals studied, such nonreciprocity can be greatly enhanced via synthetic antiferromagnetic coupl...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/96759 http://hdl.handle.net/10220/25629 |
| _version_ | 1811692672008585216 |
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| author | Piramanayagam, Seidikkurippu Nellainayagam Zhang, V. L. Lim, H. S. Ng, S. C. Kuok, M. H. Di, K. Feng, S. X. |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Piramanayagam, Seidikkurippu Nellainayagam Zhang, V. L. Lim, H. S. Ng, S. C. Kuok, M. H. Di, K. Feng, S. X. |
| author_sort | Piramanayagam, Seidikkurippu Nellainayagam |
| collection | NTU |
| description | Spin-wave nonreciprocity arising from dipole-dipole interaction is insignificant for magnon
wavelengths in the sub-100 nm range. Our micromagnetic simulations reveal that for the
nanoscale magnonic crystals studied, such nonreciprocity can be greatly enhanced via synthetic
antiferromagnetic coupling. The nonreciprocity is manifested as highly asymmetric magnon
dispersion curves of the magnonic crystals. Furthermore, based on the study of the dependence of
the nonreciprocity on an applied magnetic field, the antiparallel alignment of the magnetizations
is shown to be responsible for the enhancement. Our findings would be useful for magnonic and
spintronics applications. |
| first_indexed | 2024-10-01T06:39:30Z |
| format | Journal Article |
| id | ntu-10356/96759 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:39:30Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/967592023-02-28T19:31:52Z Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling Piramanayagam, Seidikkurippu Nellainayagam Zhang, V. L. Lim, H. S. Ng, S. C. Kuok, M. H. Di, K. Feng, S. X. School of Physical and Mathematical Sciences DRNTU::Science::Physics::Atomic physics::Properties of matter and antimatter Spin-wave nonreciprocity arising from dipole-dipole interaction is insignificant for magnon wavelengths in the sub-100 nm range. Our micromagnetic simulations reveal that for the nanoscale magnonic crystals studied, such nonreciprocity can be greatly enhanced via synthetic antiferromagnetic coupling. The nonreciprocity is manifested as highly asymmetric magnon dispersion curves of the magnonic crystals. Furthermore, based on the study of the dependence of the nonreciprocity on an applied magnetic field, the antiparallel alignment of the magnetizations is shown to be responsible for the enhancement. Our findings would be useful for magnonic and spintronics applications. MOE (Min. of Education, S’pore) Published version 2015-05-20T08:53:29Z 2019-12-06T19:34:41Z 2015-05-20T08:53:29Z 2019-12-06T19:34:41Z 2015 2015 Journal Article Di, K., Feng, S. X., Piramanayagam, S. N., Zhang, V. L., Lim, H. S., Ng, S. C., et. al. (2015). Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling. Scientific reports, 5, 10153-. https://hdl.handle.net/10356/96759 http://hdl.handle.net/10220/25629 10.1038/srep10153 25950082 en Scientific reports This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ application/pdf |
| spellingShingle | DRNTU::Science::Physics::Atomic physics::Properties of matter and antimatter Piramanayagam, Seidikkurippu Nellainayagam Zhang, V. L. Lim, H. S. Ng, S. C. Kuok, M. H. Di, K. Feng, S. X. Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling |
| title | Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling |
| title_full | Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling |
| title_fullStr | Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling |
| title_full_unstemmed | Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling |
| title_short | Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling |
| title_sort | enhancement of spin wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling |
| topic | DRNTU::Science::Physics::Atomic physics::Properties of matter and antimatter |
| url | https://hdl.handle.net/10356/96759 http://hdl.handle.net/10220/25629 |
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