Observation of propagating edge spin waves modes

Abstract

Broadband magnetization response of equilateral triangular 1000 nm Permalloy dots has been studied under an in-plane magnetic field, applied parallel (buckle state) and perpendicular (Y state) to the triangles base. Micromagnetic simulations identify edge spin waves (E-SWs) in the buckle state as SWs propagating along the two adjacent edges. These quasi one-dimensional spin waves emitted by the vertex magnetic charges gradually transform from propagating to standing due to interference and are weakly affected by dipolar interdot interaction and variation of the aspect ratio. Spin waves in the Y state have a two dimensional character. These findings open perspectives for implementation of the E-SWs in magnonic crystals and thin films.

8 pages + 4 figures

References in corpus (4)

• Spin Wave Magnetic NanoFabric: A New Approach to Spin-based Logic Circuitry
• Dynamical Signatures of Edge-State Magnetism on Graphene Nanoribbons
• Nonlinear emission of spin-wave caustics from an edge mode of a micro-structured Co2Mn0.6Fe0.4Si waveguide
• Self organized mode locking effect in superconductor / ferromagnet hybrids

Cited by in corpus (4)

• Communication and information processing in magnetic nanostructures with edge spin waves
• Local non-linear excitation of sub-100 nm bulk-type spin waves by edge-localized spin waves in magnetic films
• Effects of Nanodots Shape and Lattice Constants on the Spin Wave Dynamics of Patterned Permalloy Dots
• Spin waves along the edge states