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Title: Phase-resolved electrical detection of coherently coupled magnonic devices

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/5.0042784· OSTI ID:1819665
ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [1];  [3];  [4]; ORCiD logo [5];  [1];  [1]; ORCiD logo [6]; ORCiD logo [4]; ORCiD logo [7];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Univ. of Maryland, College Park, MD (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Kassel (Germany)
  4. Argonne National Lab. (ANL), Argonne, IL (United States); Oakland Univ., Rochester, MI (United States)
  5. Wayne State Univ., Detroit, MI (United States)
  6. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  7. Univ. of Illinois at Urbana-Champaign, IL (United States)

We demonstrate the electrical detection of magnon–magnon hybrid dynamics in yttrium iron garnet/Permalloy (YIG/Py) thin film bilayer devices. Direct microwave current injection through the conductive Py layer excites the hybrid dynamics consisting of the uniform mode of Py and the first standing spin wave (n = 1) mode of YIG, which are coupled via interfacial exchange. Both the two hybrid modes, with Py- or YIG-dominated excitations, can be detected via the spin rectification signals from the conductive Py layer, providing phase resolution of the coupled dynamics. The phase characterization is also applied to a nonlocally excited Py device, revealing the additional phase shift due to the perpendicular Oersted field. Our results provide a device platform for exploring hybrid magnonic dynamics and probing their phases, which are crucial for implementing coherent information processing with magnon excitations.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357; DESC0019273
OSTI ID:
1819665
Alternate ID(s):
OSTI ID: 1970625
Journal Information:
Applied Physics Letters, Vol. 118, Issue 20; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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