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Title: Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling
Authors: Piramanayagam, Seidikkurippu Nellainayagam
Zhang, V. L.
Lim, H. S.
Ng, S. C.
Kuok, M. H.
Di, K.
Feng, S. X.
Keywords: DRNTU::Science::Physics::Atomic physics::Properties of matter and antimatter
Issue Date: 2015
Source: 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-.
Series/Report no.: Scientific reports
Abstract: 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.
DOI: 10.1038/srep10153
Schools: School of Physical and Mathematical Sciences 
Rights: 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
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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