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

• Main Authors: Piramanayagam, Seidikkurippu Nellainayagam, Zhang, V. L., Lim, H. S., Ng, S. C., Kuok, M. H., Di, K., Feng, S. X.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Science::Physics::Atomic physics::Properties of matter and antimatter
• Online Access: https://hdl.handle.net/10356/96759; http://hdl.handle.net/10220/25629
• Institution: Nanyang Technological University

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...