Magnon Chaos in <inline-formula><tex-math notation="LaTeX">$PT$</tex-math></inline-formula>-Symmetric Cavity Magnomechanics
Here, we research a novel cavity magnomechanical system, where the magnon mode with Kerr nonlinearity driven by a microwave field couples to a phonon mode with a magneostrictive nonlinear interaction (radiation pressure-like). Based on these nonlinear properties, we numerically demonstrate magnon ch...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8693727/ |
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| Summary: | Here, we research a novel cavity magnomechanical system, where the magnon mode with Kerr nonlinearity driven by a microwave field couples to a phonon mode with a magneostrictive nonlinear interaction (radiation pressure-like). Based on these nonlinear properties, we numerically demonstrate magnon chaos in the <inline-formula><tex-math notation="LaTeX">$PT$</tex-math></inline-formula>-symmetry and <inline-formula><tex-math notation="LaTeX">$PT$</tex-math></inline-formula>-symmetry broken regimes in the system. In the <inline-formula><tex-math notation="LaTeX">$PT$</tex-math></inline-formula>-symmetry broken phase, the magnon-chaos driving threshold is lowered to a rather low levels benefited from the enhancement of the system nonlinearities. Moreover, by expenediently manipulating the phase transition between <inline-formula><tex-math notation="LaTeX">$PT$</tex-math></inline-formula>-symmetry and <inline-formula><tex-math notation="LaTeX">$PT$</tex-math></inline-formula>-symmetry broken regimes, we can switch the system between into and out of chaotic regimes. Our work may broaden the cavity magnomehcnaics and provide a promising application for magnetic chaos-related security communications. |
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| ISSN: | 1943-0655 |