Journal
APPLIED PHYSICS LETTERS
Volume 109, Issue 19, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4967695
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Funding
- National Science Foundation [DMR-1406333]
- Cornell Center for Materials Research (CCMR) part of the NSF MRSEC program [DMR-1120296]
- NSF [ECCS-1542081]
- Air Force Office of Scientific Research [FA9550-16-1-0192]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1406333] Funding Source: National Science Foundation
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We analyze the structural and magnetic characteristics of (111)-oriented lutetium iron garnet (Lu3Fe5O12) films grown by molecular-beam epitaxy, for films as thin as 2.8 nm. Thickness-dependent measurements of the in-and out-of-plane ferromagnetic resonance allow us to quantify the effects of two-magnon scattering, along with the surface anisotropy and the saturation magnetization. We achieve effective damping coefficients of 11.1(9) x 10(-4) for 5.3 nm films and 32(3) x 10(-4) for 2.8 nm films, among the lowest values reported to date for any insulating ferrimagnetic sample of comparable thickness. Published by AIP Publishing.
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