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Title: Probing magnon–magnon coupling in exchange coupled Y3Fe5O12/Permalloy bilayers with magneto-optical effects

Journal Article · · Scientific Reports
 [1];  [2];  [1];  [1];  [3];  [4];  [1];  [1];  [2];  [2];  [2];  [5]
  1. Oakland Univ., Rochester, MI (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Wayne State Univ., Detroit, MI (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials
  5. Oakland Univ., Rochester, MI (United States); Argonne National Lab. (ANL), Argonne, IL (United States)

We demonstrate the magnetically-induced transparency (MIT) effect in Y3Fe5O12(YIG)/Permalloy (Py) coupled bilayers. The measurement is achieved via a heterodyne detection of the coupled magnetization dynamics using a single wavelength that probes the magneto-optical Kerr and Faraday effects of Py and YIG, respectively. Clear features of the MIT effect are evident from the deeply modulated ferromagnetic resonance of Py due to the perpendicular-standing-spin-wave of YIG. We develop a phenomenological model that nicely reproduces the experimental results including the induced amplitude and phase evolution caused by the magnon–magnon coupling. Our work offers a new route towards studying phase-resolved spin dynamics and hybrid magnonic systems

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
Air Force Research Laboratory (AFRL) - Air Force Office of Scientific Research (AFOSR); USDOE Office of Science (SC), Office of Basic Energy Sciences (BES), Materials Sciences and Engineering Division; National Science Foundation (NSF)
Grant/Contract Number:
AC02-06CH11357; DMR-1808892; ECCS-1933301; FA9550-19-1-0254
OSTI ID:
1645123
Journal Information:
Scientific Reports, Vol. 10, Issue 1; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

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