Angular-dependent dynamic response and magnetization reversal in Fibonacci-distorted kagome artificial spin ice

Ali Frotanpour; Justin Woods; Barry Farmer; Amrit P. Kaphle; J. Todd Hastings; Lance E. Delong

doi:10.1103/PhysRevB.103.184402

Angular-dependent dynamic response and magnetization reversal in Fibonacci-distorted kagome artificial spin ice

Ali Frotanpour, Justin Woods, Barry Farmer, Amrit P. Kaphle, J. Todd Hastings, Lance E. Delong

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

4 Scopus citations

Abstract

We have measured the angular dependence of ferromagnetic resonance (FMR) spectra for Fibonacci-distorted, kagome artificial spin ice. The number of strong modes in the FMR spectra depend on the orientation of the applied DC magnetic field. In addition, discontinuities observed in the FMR field-frequency dispersion curves also depend on DC field orientation, and signal a multistep DC magnetization reversal, which is caused by the reduced energy degeneracy of Fibonacci-distorted vertices. The results suggest that the orientation of applied magnetic field and severity of Fibonacci distortion constitute control variables for FMR modes and multistep reversal in future magnonic devices and magnetic switching systems.

Original language	English
Article number	184402
Journal	Physical Review B
Volume	103
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevB.103.184402
State	Published - May 3 2021

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Publisher Copyright:
© 2021 American Physical Society.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Angular-dependent dynamic response and magnetization reversal in Fibonacci-distorted kagome artificial spin ice",

abstract = "We have measured the angular dependence of ferromagnetic resonance (FMR) spectra for Fibonacci-distorted, kagome artificial spin ice. The number of strong modes in the FMR spectra depend on the orientation of the applied DC magnetic field. In addition, discontinuities observed in the FMR field-frequency dispersion curves also depend on DC field orientation, and signal a multistep DC magnetization reversal, which is caused by the reduced energy degeneracy of Fibonacci-distorted vertices. The results suggest that the orientation of applied magnetic field and severity of Fibonacci distortion constitute control variables for FMR modes and multistep reversal in future magnonic devices and magnetic switching systems.",

author = "Ali Frotanpour and Justin Woods and Barry Farmer and Kaphle, {Amrit P.} and Hastings, {J. Todd} and Delong, {Lance E.}",

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T1 - Angular-dependent dynamic response and magnetization reversal in Fibonacci-distorted kagome artificial spin ice

AU - Frotanpour, Ali

AU - Woods, Justin

AU - Farmer, Barry

AU - Kaphle, Amrit P.

AU - Hastings, J. Todd

AU - Delong, Lance E.

PY - 2021/5/3

Y1 - 2021/5/3

N2 - We have measured the angular dependence of ferromagnetic resonance (FMR) spectra for Fibonacci-distorted, kagome artificial spin ice. The number of strong modes in the FMR spectra depend on the orientation of the applied DC magnetic field. In addition, discontinuities observed in the FMR field-frequency dispersion curves also depend on DC field orientation, and signal a multistep DC magnetization reversal, which is caused by the reduced energy degeneracy of Fibonacci-distorted vertices. The results suggest that the orientation of applied magnetic field and severity of Fibonacci distortion constitute control variables for FMR modes and multistep reversal in future magnonic devices and magnetic switching systems.

AB - We have measured the angular dependence of ferromagnetic resonance (FMR) spectra for Fibonacci-distorted, kagome artificial spin ice. The number of strong modes in the FMR spectra depend on the orientation of the applied DC magnetic field. In addition, discontinuities observed in the FMR field-frequency dispersion curves also depend on DC field orientation, and signal a multistep DC magnetization reversal, which is caused by the reduced energy degeneracy of Fibonacci-distorted vertices. The results suggest that the orientation of applied magnetic field and severity of Fibonacci distortion constitute control variables for FMR modes and multistep reversal in future magnonic devices and magnetic switching systems.

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Angular-dependent dynamic response and magnetization reversal in Fibonacci-distorted kagome artificial spin ice

Abstract

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