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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Current-driven coherent skyrmion generation.

C Deger1, I Yavuz2, F Yildiz3

  • 1Marmara University, Physics Department, 34722, Ziverbey, Istanbul, Turkey.

Scientific Reports
|March 7, 2019
PubMed
Summary
This summary is machine-generated.

Researchers explored magnetic skyrmion generation for spintronic devices. Micromagnetic simulations show that anti-notches in nanotracks control skyrmion drift velocity and generation frequency via spin-polarized current.

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Area of Science:

  • Spintronics
  • Materials Science
  • Nanotechnology

Background:

  • Magnetic skyrmions are promising for next-generation logic and memory devices due to their stability and small size.
  • Efficient generation and control of skyrmions are crucial for developing practical spintronic devices.

Purpose of the Study:

  • To systematically investigate coherent magnetic skyrmion generation using micromagnetic simulations.
  • To explore the influence of engineered nanotracks with anti-notches on skyrmion dynamics.

Main Methods:

  • Utilized micromagnetic simulations to study skyrmion generation in engineered nanotracks.
  • Varied parameters such as spin-polarized DC current density, damping, nonadiabaticity, and anti-notch geometry.

Main Results:

  • Demonstrated that skyrmion drift velocity and generation frequency are tunable via spin-polarized DC current density.
  • Identified damping, nonadiabaticity, and anti-notch geometry as critical factors influencing skyrmion generation.

Conclusions:

  • The study provides a theoretical basis for designing skyrmion-based spintronic devices.
  • Findings offer insights into controlling skyrmion dynamics for information carrying applications.