Ferromagnetic resonances in single-crystal yttrium iron garnet nanofilms fabricated by metal-organic decomposition

Authors

Szu Fan Wang
Kayetan Chorazewicz, University of California, Berkeley
Suvechhya Lamichhane, University of Nebraska–Lincoln
Ronald A. Parrott
Stefano Cabrini, Lawrence Berkeley National Laboratory
Peter Fischer, Lawrence Berkeley National LaboratoryFollow
Noah Kent, Lawrence Berkeley National Laboratory
John H. Turner, Lawrence Berkeley National Laboratory
Takayuki Ishibashi, Nagaoka University of Technology
Zachary Parker Frohock, Colorado State University
Jacob J. Wisser, Geballe Laboratory for Advanced Materials
Peng Li, Stanford University
Ruthi Zielinski, University of Nebraska–Lincoln
Bryce Herrington, University of Nebraska–Lincoln
Yuri Suzuki, Geballe Laboratory for Advanced Materials
Mingzhong Wu, Colorado State University
Keiko Munechika, High RI Optics
Carlos Pina-Hernandez, High RI Optics
Robert Streubel, University of Nebraska–LincolnFollow
Allen A. Sweet, Santa Clara UniversityFollow

Date of this Version

10-25-2021

Document Type

Article

Citation

Appl. Phys. Lett. 119, 172405 (2021);

doi: 10.1063/5.0067122

Comments

Published under an exclusive license by AIP Publishing. Used by permission.

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.