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Poster communications

Magnonic crystal in Heusler Based Co2MnSi thin films

S Mantion 1 Nicolas Biziere 1 
1 CEMES-MEM - Matériaux et dispositifs pour l'Electronique et le Magnétisme
CEMES - Centre d'élaboration de matériaux et d'études structurales
Abstract : Magnonic crystals are micro/nano-structured magnetic systems that can be used for passive microwave devices such as filters, waveguides, sensors etc.. The Heusler-based Co 2 MnSi (CMS) alloy is considered as a promising material for magnonic applications due to its relatively high saturation magnetization and low Gilbert damping. Here, we demonstrated with micromagnetic simulations that its cubic crystal anisotropy allows microwave reconfigurable operations and filtering properties at zero bias field in a simple model consisting of a squared antidot magnonic crystal. We showed that a low amplitude (few mT) and ultra-short (≈ 1 ns) initialization field can be used to recover different quasi-uniform remanent states that can couple or not to a microwave field. A first experimental demonstration of the reconfigurable operation at zero magnetic field has been observed by ferromagnetic resonance on a squared antidot lattice with square size 200 nm and spacing 600nm.
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Submitted on : Monday, July 11, 2022 - 8:42:59 PM
Last modification on : Saturday, July 16, 2022 - 3:56:49 AM


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  • HAL Id : hal-03720318, version 1


S Mantion, Nicolas Biziere. Magnonic crystal in Heusler Based Co2MnSi thin films. 20ème colloque Louis Néel, Jun 2022, Strasbourg, France. ⟨hal-03720318⟩



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