Strongly nonlinear antiferromagnetic dynamics in high magnetic fields

Pavel Stremoukhov; Ansar Safin; Casper F. Schippers; Reinoud Lavrijsen; Maurice Bal; Uli Zeitler; Alexandr Sadovnikov; Elizaveta Kozlova; Kamyar Saeedi Ilkhchy; Sergey Nikitov; Andrei Kirilyuk

doi:10.1016/j.rinp.2024.107377

Strongly nonlinear antiferromagnetic dynamics in high magnetic fields

Pavel Stremoukhov, Ansar Safin, Casper F. Schippers, Reinoud Lavrijsen, Maurice Bal, Uli Zeitler, Alexandr Sadovnikov, Elizaveta Kozlova, Kamyar Saeedi Ilkhchy, Sergey Nikitov, Andrei Kirilyuk (Corresponding author)

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Abstract

Antiferromagnetic (AFM) materials possess a well-recognized potential for ultrafast data processing thanks to their intrinsic ultrafast spin dynamics, absence of stray fields, and large spin transport effects. The very same properties, however, make their manipulation difficult, requiring frequencies in THz range and magnetic fields of tens of Teslas. Switching of AFM order implies going into the nonlinear regime, a largely unexplored territory. Here we use THz light from a free electron laser to drive antiferromagnetic NiO into a highly nonlinear regime and steer it out of nonlinearity with magnetic field from a 33-Tesla Bitter magnet. This demonstration of large-amplitude dynamics represents a crucial step towards ultrafast resonant switching of AFM order.

Original language	English
Article number	107377
Number of pages	7
Journal	Results in Physics
Volume	57
DOIs	https://doi.org/10.1016/j.rinp.2024.107377
Publication status	Published - Feb 2024

Bibliographical note

Publisher Copyright:
© 2024 The Authors

Keywords

High magnetic field
Nonlinear resonance
Spin pumping
Spin-hall effect

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title = "Strongly nonlinear antiferromagnetic dynamics in high magnetic fields",

abstract = "Antiferromagnetic (AFM) materials possess a well-recognized potential for ultrafast data processing thanks to their intrinsic ultrafast spin dynamics, absence of stray fields, and large spin transport effects. The very same properties, however, make their manipulation difficult, requiring frequencies in THz range and magnetic fields of tens of Teslas. Switching of AFM order implies going into the nonlinear regime, a largely unexplored territory. Here we use THz light from a free electron laser to drive antiferromagnetic NiO into a highly nonlinear regime and steer it out of nonlinearity with magnetic field from a 33-Tesla Bitter magnet. This demonstration of large-amplitude dynamics represents a crucial step towards ultrafast resonant switching of AFM order.",

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AU - Stremoukhov, Pavel

AU - Safin, Ansar

AU - Schippers, Casper F.

AU - Lavrijsen, Reinoud

AU - Bal, Maurice

AU - Zeitler, Uli

AU - Sadovnikov, Alexandr

AU - Kozlova, Elizaveta

AU - Ilkhchy, Kamyar Saeedi

AU - Nikitov, Sergey

AU - Kirilyuk, Andrei

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N2 - Antiferromagnetic (AFM) materials possess a well-recognized potential for ultrafast data processing thanks to their intrinsic ultrafast spin dynamics, absence of stray fields, and large spin transport effects. The very same properties, however, make their manipulation difficult, requiring frequencies in THz range and magnetic fields of tens of Teslas. Switching of AFM order implies going into the nonlinear regime, a largely unexplored territory. Here we use THz light from a free electron laser to drive antiferromagnetic NiO into a highly nonlinear regime and steer it out of nonlinearity with magnetic field from a 33-Tesla Bitter magnet. This demonstration of large-amplitude dynamics represents a crucial step towards ultrafast resonant switching of AFM order.

AB - Antiferromagnetic (AFM) materials possess a well-recognized potential for ultrafast data processing thanks to their intrinsic ultrafast spin dynamics, absence of stray fields, and large spin transport effects. The very same properties, however, make their manipulation difficult, requiring frequencies in THz range and magnetic fields of tens of Teslas. Switching of AFM order implies going into the nonlinear regime, a largely unexplored territory. Here we use THz light from a free electron laser to drive antiferromagnetic NiO into a highly nonlinear regime and steer it out of nonlinearity with magnetic field from a 33-Tesla Bitter magnet. This demonstration of large-amplitude dynamics represents a crucial step towards ultrafast resonant switching of AFM order.

KW - High magnetic field

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KW - Spin-hall effect

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Strongly nonlinear antiferromagnetic dynamics in high magnetic fields

Abstract

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Keywords

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