Electric-field coupling to spin waves in a centrosymmetric ferrite

Abstract

We experimentally demonstrate that the spin-orbit interaction can be utilized for direct electric-field tuning of the propagation of spin waves in a single-crystal yttrium iron garnet magnonic waveguide. Magnetoelectric coupling not due to the spin-orbit interaction, and hence an order of magnitude weaker, leads to electric-field modification of the spin-wave velocity for waveguide geometries where the spin-orbit interaction will not contribute. A theory of the phase shift, validated by the experiment data, shows that, in the exchange spin wave regime, this electric tuning can have high efficiency. Our findings point to an important avenue for manipulating spin waves and developing electrically tunable magnonic devices.

5 pages, 4 figures

References in corpus (2)

• Electric-field control of spin waves at room temperature in multiferroic BiFeO3
• Electric-field switchable magnetization via the Dzyaloshinskii-Moriya interaction: FeTiO_3 versus BiFeO_3

Cited by in corpus (5)

• Magnonic quantum Hall effect and Wiedemann-Franz law
• Observation of Magnonic Band Gaps in Magnonic Crystals with Nopnreciprocal Dispersion Relation
• Spin Currents and Magnon Dynamics in Insulating Magnets
• Quantum phase transitions and string orders in the spin-1/2 Heisenberg-Ising alternating chain with Dzyaloshinskii-Moriya interaction
• Electronic control of magnonic and spintronic devices