Stochasticity of the magnon parametron

Mehrdad Elyasi; Eiji Saitoh; Gerrit E.W. Bauer

doi:10.1103/PhysRevB.105.054403

Stochasticity of the magnon parametron

Mehrdad Elyasi, Eiji Saitoh, Gerrit E.W. Bauer

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

5 Citations (Scopus)

Abstract

Unconventional computing schemes based on bistable systems ("Ising spins") may supersede conventional computing paradigms. The "magnon parametron"is an Ising spin that forms as a result of parametric excitation of a ferromagnetic particle by microwaves beyond a certain threshold. This Ising spin becomes unstable at a second threshold power at which a high-frequency telegraph noise emerges. We explain the experimentally observed stochastic switching ("p-bit"characteristics) at room temperature by the Suhl instability of the uniform magnetization precession.

Original language	English
Article number	054403
Journal	Physical Review B
Volume	105
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.105.054403
Publication status	Published - 2022 Feb 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.105.054403

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author = "Mehrdad Elyasi and Eiji Saitoh and Bauer, {Gerrit E.W.}",

note = "Funding Information: We acknowledge support by JSPS KAKENHI (Grants No. 19H00645 and No. 21K13847), and JST CREST (Grant No. JPMJCR20C1). Publisher Copyright: {\textcopyright} 2022 American Physical Society.",

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AU - Elyasi, Mehrdad

AU - Saitoh, Eiji

AU - Bauer, Gerrit E.W.

PY - 2022/2/1

Y1 - 2022/2/1

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AB - Unconventional computing schemes based on bistable systems ("Ising spins") may supersede conventional computing paradigms. The "magnon parametron"is an Ising spin that forms as a result of parametric excitation of a ferromagnetic particle by microwaves beyond a certain threshold. This Ising spin becomes unstable at a second threshold power at which a high-frequency telegraph noise emerges. We explain the experimentally observed stochastic switching ("p-bit"characteristics) at room temperature by the Suhl instability of the uniform magnetization precession.

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Stochasticity of the magnon parametron

Abstract

ASJC Scopus subject areas

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