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Condensed Matter > Mesoscale and Nanoscale Physics

arXiv:1903.01887 (cond-mat)
[Submitted on 5 Mar 2019 (v1), last revised 18 May 2020 (this version, v3)]

Title:Strong Coupling between Microwave Photons and Nanomagnet Magnons

Authors:Justin T. Hou, Luqiao Liu
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Abstract:Coupled microwave photon-magnon hybrid systems offer promising applications by harnessing various magnon physics. At present, in order to realize high coupling strength between the two subsystems, bulky ferromagnets with large spin numbers are utilized, which limits their potential applications for scalable quantum information processing. In this paper, by enhancing single spin coupling strength using lithographically defined superconducting resonators, we report high cooperativities between a resonator mode and a Kittel mode in nanometer thick Permalloy wires. The on-chip, lithographically scalable, and superconducting quantum circuit compatible design provides a direct route towards realizing hybrid quantum systems with nanomagnets, whose coupling strength can be precisely engineered and dynamic properties can be controlled by various mechanisms derived from spintronic studies.
Subjects: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Cite as: arXiv:1903.01887 [cond-mat.mes-hall]
  (or arXiv:1903.01887v3 [cond-mat.mes-hall] for this version)
  https://doi.org/10.48550/arXiv.1903.01887
Journal reference: Phys. Rev. Lett. 123, 107702 (2019)
Related DOI: https://doi.org/10.1103/PhysRevLett.123.107702

Submission history

From: Justin Hou [view email]
[v1] Tue, 5 Mar 2019 15:12:22 UTC (1,184 KB)
[v2] Thu, 7 Mar 2019 06:53:17 UTC (1,184 KB)
[v3] Mon, 18 May 2020 18:10:11 UTC (1,293 KB)
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