Influence of interfacial Dzyaloshinskii-Moriya interaction on the parametric amplification of spin waves

Journal Article · Mon Sep 14 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4931089· OSTI ID:22482087

Verba, Roman ^[1]; Tiberkevich, Vasil; Slavin, Andrei ^[2]

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1. Institute of Magnetism, National Academy of Sciences of Ukraine, Kyiv 03142 (Ukraine)
2. 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, Vol. 107, Issue 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLIFICATION
EFFICIENCY
FILMS
PARAMETRIC AMPLIFIERS
SIGNALS
SPIN WAVES
VELOCITY