Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session C35: Hybrid Systems: Coupling Spin Qubits with Microwave Resonators
2:30 PM–5:18 PM,
Monday, March 4, 2019
BCEC
Room: 205B
Sponsoring
Unit:
DQI
Chair: Vanita Srinivasa, Sandia National Laboratories
Abstract: C35.00011 : Magnon-photon coupling between a superconducting resonator and a thin film permalloy stripe*
4:54 PM–5:06 PM
Presenter:
Yi Li
(Department of Physics, Oakland University)
Authors:
Yi Li
(Department of Physics, Oakland University)
Tomas Polakovic
(Materials Science Division, Argonne National Laboratory)
Yonglei Wang
(Materials Science Division, Argonne National Laboratory)
Jing Xu
(Materials Science Division, Argonne National Laboratory)
Sergi Lendinez
(Materials Science Division, Argonne National Laboratory)
Zhizhi Zhang
(Materials Science Division, Argonne National Laboratory)
Junjia Ding
(Materials Science Division, Argonne National Laboratory)
Trupti Khaire
(Materials Science Division, Argonne National Laboratory)
Hilal Saglam
(Materials Science Division, Argonne National Laboratory)
Ralu Divan
(Center for Nanoscale Materials, Argonne National Laboratory)
JOHN E. PEARSON
(Materials Science Division, Argonne National Laboratory)
Wai-Kwong Kwok
(Materials Science Division, Argonne National Laboratory)
Zhili Xiao
(Materials Science Division, Argonne National Laboratory)
Valentyn Novosad
(Materials Science Division, Argonne National Laboratory)
Axel F Hoffmann
(Materials Science Division, Argonne National Laboratory)
Wei Zhang
(Department of Physics, Oakland University)
In this work, we achieve strong magnon-photon coupling of a device ferromagnet of Ni80Fe20 (Py) to a high-quality NbN coplanar superconducting resonator. Microwave characterizations at 1.6 K show a high quality factor Q~10000. A Py 30 nm stripe was then fabricated on top of the resonator with a 10-nm MgO spacer. We observe a strong anti-cross between the superconducting resonator mode and the Kittel mode of the Py stripe. A maximum coupling strength of geff=100 MHz is obtained at about 5 GHz when the biasing field is orthogonal to the microwave field from the resonator. The anti-crossing is completely suppressed when the biasing field is parallel to the resonator microwave field. Our results provide new pathways for implementing on-chip magnonic devices with efficient and coherent information transducers.
*This work was supported by DOE-BES, Materials Science and Engineering Division, and CNM under Contract No. DE-AC02-06CH11357, and NSF-DMR-1808892
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