Publication detail

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

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

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

Authors

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

Released

19. 1. 2021

Publisher

AMER PHYSICAL SOC

Location

COLLEGE PK

ISBN

2469-9950

Periodical

PHYSICAL REVIEW B

Year of study

103

Number

2

State

United States of America

Pages from

1

Pages to

13

Pages count

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"
}