Summary: Observation of frequency band gaps in a one-dimensional nanostructured
magnonic crystal
Z. K. Wang,1
V. L. Zhang,1
H. S. Lim,1
S. C. Ng,1
M. H. Kuok,1,a
S. Jain,2
and
A. O. Adeyeye2,b
1
Department of Physics, National University of Singapore, Singapore 117542, Singapore
2
Department of Electrical and Computer Engineering, National University of Singapore,
Singapore 117576, Singapore
Received 30 January 2009; accepted 8 February 2009; published online 27 February 2009
We report the experimental observation of band gaps in a synthetic nanostructured magnonic crystal
composed of two different magnetic materials. The sample, in the form of a one-dimensional
periodic array comprising alternating Permalloy and cobalt nanostripes, has been fabricated using
advanced lithographic techniques. Dispersion relations of spin waves in the magnonic crystal have

Source: Adeyeye, Adekunle - Department of Electrical and Computer Engineering, National University of Singapore

Collections: Physics; Materials Science