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S.-F. Wang, K. Chorazewicz, P. Li, et al., Ferromagnetic resonances in single-crystal yttrium iron garnet nanofilms fabricated by metal-organic decomposition
Release time:2022-07-13
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- DOI number:
- 10.1063/5.0067122
- Journal:
- Appl. Phys. Lett
- Abstract:
- Tunable microwave and millimeter wave oscillators and bandpass filters with ultra-low phase noise play a critical role in electronic devices, including wireless communication, microelectronics, and quantum computing. Magnetic materials, such as yttrium iron garnet (YIG), possess ultra-low phase noise and a ferromagnetic resonance tunable up to tens of gigahertz. Here, we report structural and magnetic properties of single-crystal 60 and 130 nm-thick YIG films prepared by metal-organic decomposition epitaxy. These films, consisting of multiple homoepitaxially grown monolayers, are atomically flat and possess magnetic properties similar to those grown with liquid-phase epitaxy, pulsed laser deposition, and sputtering. Our approach does not involve expensive high-vacuum deposition systems and is a true low-cost alternative to current commercial techniques that have the potential to transform the industry. We would like to thank Caroline A. Ross (Massachusetts Institute of Technology) for fruitful discussions on polycrystalline YIG films grown on silicon. The work at the Molecular Foundry was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Contract No. DE-AC02-05-CH11231. This work was supported by the Jane Robertson Layman Fund held at the University of Nebraska Foundation and Nebraska EPSCoR under the FIRST Award No. OIA-1557417. P.F. and N.K. acknowledge support by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division under Contract No. DE-AC02-05-CH11231 (NEMM program MSMAG). Z.P.F. and M.W. acknowledge support by the U.S. National Science Foundation (Nos. EFMA-1641989 and ECCS-1915849). The work at Stanford was funded by the Vannevar Bush Faculty Fellowship program sponsored by the Basic Research Office of the Assistant Secretary of Defense for Research and Engineering and funded by the Office of Naval Research through Grant No. N00014-15-1-0045 (P.L.) and the U.S. Department of Energy, Director, Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Contract No. DESC0008505 (J.J.W. and Y.S.).
- Document Code:
- 172405
- Discipline:
- Engineering
- Volume:
- 119
- Issue:
- 17
- Translation or Not:
- no
- Date of Publication:
- 2021-10-26
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