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

Document Type

Article

Date of this Version

10-25-2021

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.