Magnonic band gaps in YIG based magnonic crystals: array of grooves versus array of metallic stripes

Abstract

The magnonic band gaps of the two types of planar one-dimensional magnonic crystals comprised of the periodic array of the metallic stripes on yttrium iron garnet (YIG) film and YIG film with an array of grooves was analyzed experimentally and theoretically. In such periodic magnetic structures the propagating magnetostatic surface spin waves were excited and detected by microstripe transducers with vector network analyzer and by Brillouin light scattering spectroscopy. Properties of the magnonic band gaps were explained with the help of the finite element calculations. The important influence of the nonreciprocal properties of the spin wave dispersion induced by metallic stripes on the magnonic band gap width and its dependence on the external magnetic field has been shown. The usefulness of both types of the magnonic crystals for potential applications and possibility for miniaturization are discussed.

References in corpus (5)

• Scattering of surface and volume spin waves in a magnonic crystal
• Design and optimization of one-dimensional ferrite-film based magnonic crystals
• Observation of Magnonic Band Gaps in Magnonic Crystals with Nopnreciprocal Dispersion Relation
• Intrinsic and extrinsic mirror symmetry breaking in anti-dot spin-wave waveguides
• Nonreciprocal Dispersion of Spin Waves in Ferromagnetic Thin Films Covered with a Finite-Conductivity Metal

Cited by in corpus (8)

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• Spin wave nonreciprocity and magnonic band structure in thin permalloy film induced by dynamical coupling with an array of Ni stripes
• Characterization of spin wave propagation in (111) YIG thin films with large anisotropy
• Magnetic properties, spin waves and interaction between spin excitations and 2D electrons in interface layer in Y3Fe5O12 / AlOx / GaAs-heterostructures
• Optical heterodyne imaging of magnetostatic modes in one-dimensional magnonic crystals
• Nonreciprocal collective magnetostatic wave modes in geometrically asymmetric bilayer structure with nonmagnetic spacer
• Transition magnon modes in thin ferromagnetic nanogratings