Mode conversion by symmetry breaking of propagating spin waves.
- Materials Science Division
We study spin-wave transport in a microstructured Ni{sub 81}Fe{sub 19} waveguide exhibiting broken translational symmetry. We observe the conversion of a beam profile composed of symmetric spin-wave width modes with odd numbers of antinodes n = 1, 3,... into a mixed set of symmetric and asymmetric modes. Due to the spatial homogeneity of the exciting field along the used microstrip antenna, quantized spin-wave modes with an even number n of antinodes across the stripe's width cannot be directly excited. We show that a break in translational symmetry may result in a partial conversion of even spin-wave waveguide modes.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 1033866
- Report Number(s):
- ANL/MSD/JA-71858; APPLAB; TRN: US201203%%144
- Journal Information:
- Applied Physics Letters, Vol. 99, Issue 16; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- ENGLISH
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