A. Krysztofik, L. E. Coy, P. Kuświk, K. Załęski, H. Głowiński and J. Dubowik
Applied Physics Letters 111, 192404 (2017)
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.
Fig.1. XRD h 2h plot near the (004) reflection of structured (sample1) and plain (sample 2) YIG films. Blue arrows show clear Laue reflections of the plain film. Insets show a schematic illustration of the structured and plain films used in this study.
