Dissemin is shutting down on January 1st, 2025

Published in

Nature Research, Scientific Reports, 1(5), 2015

DOI: 10.1038/srep10153

Links

Tools

Export citation

Search in Google Scholar

Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling

Journal article published in 2015 by K. Di, S. X. Feng, Seidikkurippu Nellainayagam Piramanayagam ORCID, V. L. Zhang, H. S. Lim, S. C. Ng, M. H. Kuok ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Green circle
Preprint: archiving allowed
Upload
Red circle
Postprint: archiving forbidden
Green circle
Published version: archiving allowed
Upload
Policy details
Data provided by SHERPA/RoMEO

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. ; MOE (Min. of Education, S’pore)