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Title: Cryogenic hybrid magnonic circuits based on spalled YIG thin films

Journal Article · · Journal of Applied Physics
DOI: https://doi.org/10.1063/5.0247663 · OSTI ID:2498414
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [4]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [2]; ORCiD logo [3]
  1. Univ. of Chicago, IL (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Central Florida, Orlando, FL (United States)
  2. Univ. of Chicago, IL (United States)
  3. Northeastern Univ., Boston, MA (United States)
  4. Argonne National Laboratory (ANL), Argonne, IL (United States)
  5. Michigan Technological Univ., Houghton, MI (United States)

Yttrium iron garnet (YIG) magnonics has garnered significant research interest because of the unique properties of magnons (quasiparticles of collective spin excitation) for signal processing. In particular, hybrid systems based on YIG magnonics show great promise for quantum information science due to their broad frequency tunability and strong compatibility with other platforms. However, their broad applications have been severely constrained by substantial microwave loss in the gadolinium gallium garnet (GGG) substrate at cryogenic temperatures. In this study, we demonstrate that YIG thin films can be spalled from YIG/GGG samples. Our approach is validated by measuring hybrid devices comprising superconducting resonators and spalled YIG films, which exhibit anti-crossing features that indicate strong coupling between magnons and microwave photons. Such new capability of separating YIG thin films from GGG substrates via spalling and the integrated superconductor-YIG devices represent a significant advancement for integrated magnonic devices, paving the way for advanced magnon-based coherent information processing.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); US Department of the Navy, Office of Naval Research (ONR); USDOD; USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
2498414
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 2 Vol. 137; ISSN 0021-8979; ISSN 1089-7550
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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