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Patterned growth of crystalline Y 3 Fe 5 O 12 nanostructures with engineered magnetic shape anisotropy

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4986474· OSTI ID:1418598
We demonstrate patterned growth of epitaxial yttrium iron garnet (YIG) thin films using lithographically defined templates on gadolinium gallium garnet substrates. The fabricated YIG nanostructures yield the desired crystallographic orientation, excellent surface morphology, and narrow ferromagnetic resonance (FMR) linewidth (~4 Oe). Shape-induced magnetic anisotropy is clearly observed in a patterned array of nanobars engineered to exhibit the larger coercivity (40 Oe) compared with that of continuous films. Both hysteresis loop and angle-dependent FMR spectra measurements indicate that the easy axis aligns along the longitudinal direction of the nanobars, with an effective anisotropy field of 195 Oe. Our work overcomes difficulties in patterning YIG thin films and provides an effective means to control their magnetic properties and magnetic bias conditions.
Research Organization:
Colorado State Univ., Fort Collins, CO (United States); Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES); Univ. of California, Riverside, CA (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE
Grant/Contract Number:
SC0012670
OSTI ID:
1418598
Alternate ID(s):
OSTI ID: 1473871
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 25 Vol. 110; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (7)

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Low-damping ferromagnetic resonance in electron-beam patterned, high- Q vanadium tetracyanoethylene magnon cavities journal December 2019
Resources of nonlinear cavity magnonics for quantum information journal February 2020
Cavity optomagnonics with magnetic textures: Coupling a magnetic vortex to light journal December 2018
Low-damping ferromagnetic resonance in electron-beam patterned, high-Q vanadium tetracyanoethylene magnon cavities conference September 2020
Low-Damping Ferromagnetic Resonance in Electron-Beam Patterned, High-$Q$ Vanadium Tetracyanoethylene Magnon Cavities text January 2019
Resources of nonlinear cavity magnonics for quantum information text January 2019

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