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September 20, 2025Advanced Functional Materials

Harnessing GHz Frequency Spin‐Orbit Torque for Spin‐Wave Amplification in Nanomagnets

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Authors

PPPratap Kumar PalRFRaisa FabihaAMAmrit Kumar Mondal

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Overview

Observational analysis reveals enhanced spin-wave amplification in nanomagnets, suggesting applications in GHz frequency information processing.

Key Points

  • Enhanced amplitude of spin-waves exceeds ten-fold with variable ac charge current amplitude, improving performance.
  • Tunable amplification allows for narrowing of the linewidth of amplified spin-wave signals, enhancing clarity.
  • The process utilizes the spin Hall effect to produce alternating spin currents that effectively couple energy to spin-wave modes.
  • Findings suggest significant applications for improving GHz-frequency information transmission and analog signal processing.

Cite This Study

Pal et al. (2025) studied this question.

synapsesocial.com/papers/68d46aae31b076d99fa676e2https://doi.org/10.1002/adfm.202522422
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