Tunable cooperativity in coupled spin-cavity systems

Lukas Liensberger; Franz X. Haslbeck; Andreas Bauer; Helmuth Berger; Rudolf Gross; Hans Huebl; Christian Pfleiderer; Mathias Weiler

doi:10.1103/PhysRevB.104.L100415

Tunable cooperativity in coupled spin-cavity systems

Lukas Liensberger, Franz X. Haslbeck, Andreas Bauer, Helmuth Berger, Rudolf Gross, Hans Huebl, Christian Pfleiderer, Mathias Weiler

Chair of Experimental Physics on the Topology of Correlated Systems

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We experimentally study the tunability of the cooperativity in coupled spin-cavity systems by changing the magnetic state of the spin system via an external control parameter. As a model system, we use the skyrmion host material Cu2OSeO3 coupled to a microwave cavity resonator. We measure a dispersive coupling between the resonator and magnon modes in different magnetic phases of the material and model our results by using the input-output formalism. Our results show a strong tunability of the normalized coupling rate by magnetic field, allowing us to change the magnon-photon cooperativity from 1 to 60 at the phase boundaries of the skyrmion lattice state.

Original language	English
Article number	L100415
Journal	Physical Review B
Volume	104
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.104.L100415
State	Published - 1 Sep 2021

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10.1103/PhysRevB.104.L100415

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title = "Tunable cooperativity in coupled spin-cavity systems",

abstract = "We experimentally study the tunability of the cooperativity in coupled spin-cavity systems by changing the magnetic state of the spin system via an external control parameter. As a model system, we use the skyrmion host material Cu2OSeO3 coupled to a microwave cavity resonator. We measure a dispersive coupling between the resonator and magnon modes in different magnetic phases of the material and model our results by using the input-output formalism. Our results show a strong tunability of the normalized coupling rate by magnetic field, allowing us to change the magnon-photon cooperativity from 1 to 60 at the phase boundaries of the skyrmion lattice state.",

author = "Lukas Liensberger and Haslbeck, {Franz X.} and Andreas Bauer and Helmuth Berger and Rudolf Gross and Hans Huebl and Christian Pfleiderer and Mathias Weiler",

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doi = "10.1103/PhysRevB.104.L100415",

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T1 - Tunable cooperativity in coupled spin-cavity systems

AU - Liensberger, Lukas

AU - Haslbeck, Franz X.

AU - Bauer, Andreas

AU - Berger, Helmuth

AU - Gross, Rudolf

AU - Huebl, Hans

AU - Pfleiderer, Christian

AU - Weiler, Mathias

PY - 2021/9/1

Y1 - 2021/9/1

N2 - We experimentally study the tunability of the cooperativity in coupled spin-cavity systems by changing the magnetic state of the spin system via an external control parameter. As a model system, we use the skyrmion host material Cu2OSeO3 coupled to a microwave cavity resonator. We measure a dispersive coupling between the resonator and magnon modes in different magnetic phases of the material and model our results by using the input-output formalism. Our results show a strong tunability of the normalized coupling rate by magnetic field, allowing us to change the magnon-photon cooperativity from 1 to 60 at the phase boundaries of the skyrmion lattice state.

AB - We experimentally study the tunability of the cooperativity in coupled spin-cavity systems by changing the magnetic state of the spin system via an external control parameter. As a model system, we use the skyrmion host material Cu2OSeO3 coupled to a microwave cavity resonator. We measure a dispersive coupling between the resonator and magnon modes in different magnetic phases of the material and model our results by using the input-output formalism. Our results show a strong tunability of the normalized coupling rate by magnetic field, allowing us to change the magnon-photon cooperativity from 1 to 60 at the phase boundaries of the skyrmion lattice state.

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SN - 2469-9950

VL - 104

JO - Physical Review B

JF - Physical Review B

IS - 10

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ER -

Tunable cooperativity in coupled spin-cavity systems

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