Detail publikace

Theoretical study of current-induced domain wall motion in magnetic nanotubes with azimuthal domains

Jérôme Hurst, Arnaud De Riz, Michal Staňo, Jean-Christophe Toussaint, Olivier Fruchart, Daria Gusakova

Originální název

Theoretical study of current-induced domain wall motion in magnetic nanotubes with azimuthal domains

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

We report a theoretical overview of the magnetic domain wall behavior under an electric current in infinitely long nanotubes with azimuthal magnetization, combining the one-dimensional analytic model and micromagnetic simulations. We highlight effects that, besides spin-transfer torques already largely understood in flat strips, arise specifically in the tubular geometry: the Ersted field and curvature-induced magnetic anisotropy resulting both from the exchange interaction and material growth. Depending on both the geometry of the tube and the strength of the azimuthal anisotropy, Bloch or Ned walls arise at rest, resulting in two regimes of motion largely dominated by either spin-transfer torques or the Ersted field. We determine the Walker breakdown current in all cases, and highlight the most suitable parameters to achieve high domain wall speed.

Klíčová slova

magnetic nanotube; domain wall; dynamics; micromagnetic simulation; LLG; azimuthal domain; domain wall motion

Autoři

Jérôme Hurst, Arnaud De Riz, Michal Staňo, Jean-Christophe Toussaint, Olivier Fruchart, Daria Gusakova

Vydáno

19. 1. 2021

Nakladatel

AMER PHYSICAL SOC

Místo

COLLEGE PK

ISSN

2469-9950

Periodikum

PHYSICAL REVIEW B

Ročník

103

Číslo

2

Stát

Spojené státy americké

Strany od

1

Strany do

13

Strany počet

13

URL

https://journals.aps.org/prb/abstract/10.1103/PhysRevB.103.024434

BibTex

@article{BUT169358,
  author="Jérôme {Hurst} and Michal {Staňo} and Olivier {Fruchart}",
  title="Theoretical study of current-induced domain wall motion in magnetic nanotubes with azimuthal domains",
  journal="PHYSICAL REVIEW B",
  year="2021",
  volume="103",
  number="2",
  pages="1--13",
  doi="10.1103/PhysRevB.103.024434",
  issn="2469-9950",
  url="https://journals.aps.org/prb/abstract/10.1103/PhysRevB.103.024434"
}