Influence of interfacial Dzyaloshinskii-Moriya interaction on the parametric amplification of spin waves
- Institute of Magnetism, National Academy of Sciences of Ukraine, Kyiv 03142 (Ukraine)
- Department of Physics, Oakland University, Rochester, Michigan 48309 (United States)
The influence of the interfacial Dzyaloshinskii-Moriya interaction (IDMI) on the parametric amplification of spin waves propagating in ultrathin ferromagnetic film is considered theoretically. It is shown that the IDMI changes the relation between the group velocities of the signal and idler spin waves in a parametric amplifier, which may result in the complete vanishing of the reversed idler wave. In the optimized case, the idler spin wave does not propagate from the pumping region at all, which increases the efficiency of the amplification of the signal wave and suppresses the spurious impact of the idler waves on neighboring spin-wave processing devices.
- OSTI ID:
- 22482087
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 11 Vol. 107; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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