Influence of interfacial Dzyaloshinskii-Moriya interaction on the parametric amplification of spin waves
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 14, 2015
- Source ID
- 10.1063/1.4931089
Entities
People
- Andrei Slavin
- Roman Verba
- Vasil Tiberkevich
Organizations
- Defense Advanced Research Projects Agency
- National Academy of Sciences of Ukraine
- National Science Foundation
- Oakland University