Projects per year
Abstract
Magnetic garnet thin films exhibiting perpendicular magnetic anisotropy (PMA) and ultra-low damping have recently been explored for applications in magnonics and spintronics. Here, we present a systematic study of PMA and magnetic damping in bismuth-substituted yttrium iron garnet (Bi-YIG) films grown on sGGG (111) substrates by pulsed laser deposition. Films with thicknesses ranging from 5 to 160 nm are investigated. Structural characterization using x-ray diffraction and reciprocal space mapping demonstrates the pseudomorphic growth of the films. The films exhibit perpendicular magnetic anisotropy up to 160 nm thickness, with the zero-magnetic field state changing from fully saturated for low thicknesses to a dense magnetic stripe pattern for thicker films. The films show a ferromagnetic resonance (FMR) linewidth of 100-200 MHz with a Gilbert damping constant of the order of 4 × 10 − 3 . The broad FMR linewidth is caused by inhomogeneities of magnetic properties on micrometer length scales.
Original language | English |
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Article number | 243902 |
Pages (from-to) | 1-7 |
Number of pages | 7 |
Journal | Journal of Applied Physics |
Volume | 134 |
Issue number | 24 |
DOIs | |
Publication status | Published - 26 Dec 2023 |
MoE publication type | A1 Journal article-refereed |
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Dive into the research topics of 'Perpendicular magnetic anisotropy in Bi-substituted yttrium iron garnet films'. Together they form a unique fingerprint.Projects
- 2 Finished
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Bridging Magnons: Bridging Magnons
Flajsman, L. (Principal investigator)
01/09/2021 → 31/08/2024
Project: Academy of Finland: Other research funding
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-: Magnetism and the effects of Electric Field
van Dijken, S. (Principal investigator) & Mozhikunnath Das, S. (Project Member)
01/10/2019 → 31/12/2024
Project: EU: MC
Equipment
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OtaNano - Nanomicroscopy Center
Seitsonen, J. (Manager) & Rissanen, A. (Other)
OtaNanoFacility/equipment: Facility