Pseudomorphic Yttrium Iron Garnet Thin Films with Low Damping and Inhomogeneous Linewidth Broadening
Document Type
Article
Publication Date
1-1-2015
Abstract
© 2010-2012 IEEE. Nanometer-thick yttrium iron garnet films, grown on gadolinium gallium garnet substrates by pulsed laser deposition, exhibit remarkably high crystallinity and atomically smooth surfaces. The pseudomorphic growth mechanism leads to large negative out-of-plane uniaxial anisotropy, narrow resonance linewidths, and minimal damping. Magnetic resonance measurements indicate that both the Gilbert damping parameter and inhomogeneous linewidth broadening Δ Hpp,0 are consistently low for films of various thicknesses. Even at film thickness ≈ 20 nm, we attain α 2× 10-4 and Δ Hpp,0 ≈ 1 Oe, which are among the lowest values ever reported.
Repository Citation
Howe, B.,
Emori, S.,
Jeon, H.,
Oxholm, T.,
Jones, J.,
Mahalingam, K.,
Zhuang, Y.,
Sun, N.,
& Brown, G.
(2015). Pseudomorphic Yttrium Iron Garnet Thin Films with Low Damping and Inhomogeneous Linewidth Broadening. IEEE Magnetics Letters, 6.
https://corescholar.libraries.wright.edu/math/397
DOI
10.1109/LMAG.2015.2449260
