Exquisite growth control and magnetic properties of yttrium iron garnet thin films
- Univ. of California, Riverside, CA (United States). Dept. of Physics and Astronomy
- Colorado State Univ., Fort Collins, CO (United States). Dept. of Physics
- Centre National de la Recherche Scientifique (CNRS), Palaiseau (France); Univ. Paris-Saclay, Palaiseau (France); Alternative Energies and Atomic Energy Commission (CEA), Palaiseau (France); Ecole Polytechnique, Palaiseau (France). Lab. des Solides Irradies
- Univ. of California, Riverside, CA (United States). Dept. of Mechanic Engineering and Materials Science & Engineering Program
A layer-by-layer epitaxial growth up to 227 atomic layers of ferrimagnetic insulator yttrium iron garnet (YIG) thin films is achieved on (110)-oriented gadolinium gallium garnet substrates using pulsed laser deposition. Atomically smooth terraces are observed on YIG films up to 100 nm in thickness. The root-mean-square roughness is as low as 0.067 nm. The easy-axis lies in the film plane, indicating the dominance of shape anisotropy. For (110)-YIG films, there is well-defined two-fold in-plane anisotropy, with the easiest axis directed along [001]. The Gilbert damping constant is determined to be 1.0 × 10-4 for 100 nm thick films.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- SC0012670
- OSTI ID:
- 1371197
- Alternate ID(s):
- OSTI ID: 1240761
OSTI ID: 22591414
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 10 Vol. 108; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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