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Improving Low-Temperature Damping of Epitaxial Yttrium Iron Garnet Thin Film

Guo, Side
http://orcid.org/0000-0001-8997-5178
http://rave.ohiolink.edu/etdc/view?acc_num=osu168193153744006

Abstract Details

2023, Doctor of Philosophy, Ohio State University, Physics.
This thesis describes the role of magnetic materials in modern information technology research and application. Meanwhile, hybrid quantum systems are gaining great attention in the quantum computing area, which studies and manipulates the coupling physics between different platforms. Yttrium iron garnet (YIG) is one of the lowest magnetic damping materials and long has been studied for its potential in magnon-based information transmission, processing and storage. The integration of low damping YIG thin film in hybrid quantum systems is a promising research direction but has been hindered by its strongly increased damping due to its interaction with the gadolinium gallium garnet substrate, which YIG is commonly deposited on. In this thesis’ work, improvement can be made by using a diamagnetic buffer layer or diamagnetic substrate, and a damping constant even lower than room temperature is obtained. Strong coupling in a hybrid system that incorporates a superconducting microwave resonator and the YIG film was demonstrated and proves that YIG epitaxial thin film can be an attractive candidate in low temperature applications.
Fengyuan Yang (Advisor)
Richard Hughes (Committee Member)
Jay Gupta (Committee Member)
Nandini Trivedi (Committee Member)
Physics
yttrium iron garnet; epitaxial thin film; low-temperature damping; superconducting microwave resonator; photon-magnon coupling

Recommended Citations

Citations

  • Guo, S. (2023). Improving Low-Temperature Damping of Epitaxial Yttrium Iron Garnet Thin Film [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu168193153744006

    APA Style (7th edition)

  • Guo, Side. Improving Low-Temperature Damping of Epitaxial Yttrium Iron Garnet Thin Film. 2023. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu168193153744006.

    MLA Style (8th edition)

  • Guo, Side. "Improving Low-Temperature Damping of Epitaxial Yttrium Iron Garnet Thin Film." Doctoral dissertation, Ohio State University, 2023. http://rave.ohiolink.edu/etdc/view?acc_num=osu168193153744006

    Chicago Manual of Style (17th edition)

osu168193153744006
116
© 2023, some rights reserved.Creative Commons License Improving Low-Temperature Damping of Epitaxial Yttrium Iron Garnet Thin Film by Side Guo is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by The Ohio State University and OhioLINK.