Imaging collective magnonic modes in 2D arrays of magnetic nanoelements
Keatley, Paul Steven
Physical Review Letters
American Physical Society
We have used time resolved scanning Kerr microscopy to image collective spin wave modes within a 2D array of magnetic nanoelements. Long wavelength spin waves are confined within the array as if it was a continuous element of the same size but with effective material properties determined by the structure of the array and its constituent nanoelements. The array is an example of a magnonic metamaterial, the demonstration of which provides new opportunities within the emerging field of magnonics.
Copyright © 2010 The American Physical Society
Vol. 104 (2), article 027201
Place of publication