Ultra-low damping in lift-off structured yttrium iron garnet thin films

Abstract

We show that using maskless photolithography and the lift-off technique, patterned yttrium iron garnet thin films possessing ultra-low Gilbert damping can be accomplished. The films of 70 nm thickness were grown on (001)-oriented gadolinium gallium garnet by means of pulsed laser deposition, and they exhibit high crystalline quality, low surface roughness, and the effective magnetization of 127 emu/cm3. The Gilbert damping parameter is as low as 5x10-4. The obtained structures have well-defined sharp edges which along with good structural and magnetic film properties pave a path in the fabrication of high-quality magnonic circuits and oxide-based spintronic devices.

arXiv comment9 pages, 3 figures

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• Ferromagnetic Resonance Studies of Strain tuned Bi:YIG Films
• Nanoscale X-Ray Imaging of Spin Dynamics in Yttrium Iron Garnet
• Exploring a quantum-information-relevant magnonic material: Ultralow damping at low temperature in the organic ferrimagnet V[TCNE]x
• Coupling function from bath density of states