Strong Photon‐Magnon Coupling Using a Lithographically Defined Organic Ferrimagnet

Abstract A cavity‐magnonic system composed of a superconducting microwave resonator coupled to a magnon mode hosted by the organic‐based ferrimagnet vanadium tetracyanoethylene (V[TCNE]x) is demonstrated. This work is motivated by the challenge of scalably integrating a low‐damping magnetic system w...

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Main Authors: Qin Xu, Hil Fung Harry Cheung, Donley S. Cormode, Tharnier O. Puel, Srishti Pal, Huma Yusuf, Michael Chilcote, Michael E. Flatté, Ezekiel Johnston‐Halperin, Gregory D. Fuchs
Format: Article
Language:English
Published: Wiley 2024-04-01
Series:Advanced Science
Subjects:
Online Access:https://doi.org/10.1002/advs.202310032
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author Qin Xu
Hil Fung Harry Cheung
Donley S. Cormode
Tharnier O. Puel
Srishti Pal
Huma Yusuf
Michael Chilcote
Michael E. Flatté
Ezekiel Johnston‐Halperin
Gregory D. Fuchs
author_facet Qin Xu
Hil Fung Harry Cheung
Donley S. Cormode
Tharnier O. Puel
Srishti Pal
Huma Yusuf
Michael Chilcote
Michael E. Flatté
Ezekiel Johnston‐Halperin
Gregory D. Fuchs
author_sort Qin Xu
collection DOAJ
description Abstract A cavity‐magnonic system composed of a superconducting microwave resonator coupled to a magnon mode hosted by the organic‐based ferrimagnet vanadium tetracyanoethylene (V[TCNE]x) is demonstrated. This work is motivated by the challenge of scalably integrating a low‐damping magnetic system with planar superconducting circuits. V[TCNE]x has ultra‐low intrinsic damping, can be grown at low processing temperatures on arbitrary substrates, and can be patterned via electron beam lithography. The devices operate in the strong coupling regime, with a cooperativity exceeding 1000 for coupling between the Kittel mode and the resonator mode at T≈0.4 K, suitable for scalable quantum circuit integration. Higher‐order magnon modes are also observed with much narrower linewidths than the Kittel mode. This work paves the way for high‐cooperativity hybrid quantum devices in which magnonic circuits can be designed and fabricated as easily as electrical wires.
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spelling doaj.art-3c765797c0d54d30bb52289555097cc12024-04-10T13:10:11ZengWileyAdvanced Science2198-38442024-04-011114n/an/a10.1002/advs.202310032Strong Photon‐Magnon Coupling Using a Lithographically Defined Organic FerrimagnetQin Xu0Hil Fung Harry Cheung1Donley S. Cormode2Tharnier O. Puel3Srishti Pal4Huma Yusuf5Michael Chilcote6Michael E. Flatté7Ezekiel Johnston‐Halperin8Gregory D. Fuchs9Department of Physics Cornell University Ithaca NY 14853 USADepartment of Physics Cornell University Ithaca NY 14853 USADepartment of Physics The Ohio State University Columbus OH 43210 USADepartment of Physics and Astronomy University of Iowa Iowa City IA 52242 USASchool of Applied and Engineering Physics Cornell University Ithaca NY 14853 USADepartment of Physics The Ohio State University Columbus OH 43210 USASchool of Applied and Engineering Physics Cornell University Ithaca NY 14853 USADepartment of Physics and Astronomy University of Iowa Iowa City IA 52242 USADepartment of Physics The Ohio State University Columbus OH 43210 USASchool of Applied and Engineering Physics Cornell University Ithaca NY 14853 USAAbstract A cavity‐magnonic system composed of a superconducting microwave resonator coupled to a magnon mode hosted by the organic‐based ferrimagnet vanadium tetracyanoethylene (V[TCNE]x) is demonstrated. This work is motivated by the challenge of scalably integrating a low‐damping magnetic system with planar superconducting circuits. V[TCNE]x has ultra‐low intrinsic damping, can be grown at low processing temperatures on arbitrary substrates, and can be patterned via electron beam lithography. The devices operate in the strong coupling regime, with a cooperativity exceeding 1000 for coupling between the Kittel mode and the resonator mode at T≈0.4 K, suitable for scalable quantum circuit integration. Higher‐order magnon modes are also observed with much narrower linewidths than the Kittel mode. This work paves the way for high‐cooperativity hybrid quantum devices in which magnonic circuits can be designed and fabricated as easily as electrical wires.https://doi.org/10.1002/advs.202310032cavity magnonicshybrid quantum systemlithographically defined low damping organic ferrimagnetnon‐uniform magnon modesstrong couplingvanadium tetracyanoethylene
spellingShingle Qin Xu
Hil Fung Harry Cheung
Donley S. Cormode
Tharnier O. Puel
Srishti Pal
Huma Yusuf
Michael Chilcote
Michael E. Flatté
Ezekiel Johnston‐Halperin
Gregory D. Fuchs
Strong Photon‐Magnon Coupling Using a Lithographically Defined Organic Ferrimagnet
Advanced Science
cavity magnonics
hybrid quantum system
lithographically defined low damping organic ferrimagnet
non‐uniform magnon modes
strong coupling
vanadium tetracyanoethylene
title Strong Photon‐Magnon Coupling Using a Lithographically Defined Organic Ferrimagnet
title_full Strong Photon‐Magnon Coupling Using a Lithographically Defined Organic Ferrimagnet
title_fullStr Strong Photon‐Magnon Coupling Using a Lithographically Defined Organic Ferrimagnet
title_full_unstemmed Strong Photon‐Magnon Coupling Using a Lithographically Defined Organic Ferrimagnet
title_short Strong Photon‐Magnon Coupling Using a Lithographically Defined Organic Ferrimagnet
title_sort strong photon magnon coupling using a lithographically defined organic ferrimagnet
topic cavity magnonics
hybrid quantum system
lithographically defined low damping organic ferrimagnet
non‐uniform magnon modes
strong coupling
vanadium tetracyanoethylene
url https://doi.org/10.1002/advs.202310032
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