High cooperativity in coupled microwave resonator ferrimagnetic insulator hybrids.
Hans Huebl,Christoph W. Zollitsch,Johannes Lotze,Fredrik Hocke,Moritz Greifenstein,Achim Marx,Rudolf Gross,Sebastian T. B. Goennenwein +7 more
TLDR
The observation of strong coupling between the exchange-coupled spins in a gallium-doped yttrium iron garnet and a superconducting coplanar microwave resonator made from Nb demonstrates that exchange-Coupled systems are suitable for cavity quantum electrodynamics experiments, while allowing high integration densities due to their spin densities of the order of one Bohr magneton per atom.Abstract:
We report the observation of strong coupling between the exchange-coupled spins in a gallium-doped yttrium iron garnet and a superconducting coplanar microwave resonator made from Nb. The measured coupling rate of 450 MHz is proportional to the square root of the number of exchange-coupled spins and well exceeds the loss rate of 50 MHz of the spin system. This demonstrates that exchange-coupled systems are suitable for cavity quantum electrodynamics experiments, while allowing high integration densities due to their spin densities of the order of one Bohr magneton per atom. Our results furthermore show, that experiments with multiple exchange-coupled spin systems interacting via a single resonator are within reach.read more
Citations
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Low loss spin wave resonances in organic-based ferrimagnet vanadium tetracyanoethylene thin films
TL;DR: In this paper, high quality factor spin wave resonances were demonstrated in an encapsulated thin film of the organic-based ferrimagnet vanadium tetracyanoethylene (V[TCNE]$_\textit{x~2}$) coated on an a-plane sapphire substrate by low temperature chemical vapor deposition.
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Magnon-photon coupling in the noncollinear magnetic insulator Cu 2 OSeO 3
L. V. Abdurakhimov,Safe Khan,N. A. Panjwani,J. D. Breeze,J. D. Breeze,Masahito Mochizuki,Shinichiro Seki,Y. Tokura,Y. Tokura,John J. L. Morton,Hidekazu Kurebayashi +10 more
TL;DR: In this paper, the authors demonstrate that collective spin excitations of the helical structure (helimagnons) can couple strongly to microwave cavity photons, resulting in the formation of a hybrid state -the helimagnon polariton.
Journal ArticleDOI
Introducing coherent time control to cavity magnon-polariton modes
Tim Wolz,Alexander Stehli,Andre Schneider,Isabella Boventer,Isabella Boventer,Rair Macêdo,Alexey V. Ustinov,Alexey V. Ustinov,Mathias Kläui,Martin Weides,Martin Weides +10 more
TL;DR: In this article, the state of the cavity magnon-polaritons (CMPs) was changed from the energy exchanging beat mode to its normal modes and two fundamental examples of coherent manipulation were presented.
Journal ArticleDOI
Linearly polarized GHz magnetization dynamics of spin helix modes in the ferrimagnetic insulator Cu 2 OSeO 3
I. Stasinopoulos,S. Weichselbaumer,Andreas Bauer,J. Waizner,Helmuth Berger,Markus Garst,Markus Garst,Christian Pfleiderer,Dirk Grundler +8 more
TL;DR: In this article, it was shown that the bulk chiral magnet Cu2OSeO3 exhibits linearly polarized magnetization dynamics at an unexpectedly small frequency of about 2 GHz at zero magnetic field.
Journal ArticleDOI
Simultaneous Optical and Electrical Spin-Torque Magnetometry with Phase-Sensitive Detection of Spin Precession
Yi Li,Yi Li,Hilal Saglam,Hilal Saglam,Zhizhi Zhang,Zhizhi Zhang,Rao Bidthanapally,Yuzan Xiong,John E. Pearson,Valentine Novosad,Hongwei Qu,Gopalan Srinivasan,Axel Hoffmann,Wei Zhang,Wei Zhang +14 more
TL;DR: In this article, the authors demonstrate tabletop, heterodyne optical detection of the local phase of ferromagnetic resonance, with the capability to extract spin-orbit torques by quantifying an additional precessional phase in a heavy metal/ferromagnet bilayer.
References
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Demonstration of two-qubit algorithms with a superconducting quantum processor
Leonardo DiCarlo,Jerry M. Chow,Jay M. Gambetta,Lev S. Bishop,Blake R. Johnson,David Schuster,Johannes Majer,Alexandre Blais,Luigi Frunzio,Steven Girvin,Robert Schoelkopf +10 more
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