Detail publikačního výsledku

Bloch-point-mediated topological transformations of magnetic domain walls in cylindrical nanowires

Wartelle, A.; Trapp, B.; Stano, M.; Thirion, C.; Bochmann, S.; Bachmann, J.; Foerster, M.; Aballe, L.; Mentos, TO.; Locatelli, A.; Sala, A.; Cagnon, L.; Toussaint, JC.; Fruchart, O.

Originální název

Bloch-point-mediated topological transformations of magnetic domain walls in cylindrical nanowires

Anglický název

Bloch-point-mediated topological transformations of magnetic domain walls in cylindrical nanowires

Druh

Článek WoS

Originální abstrakt

Cylindrical nanowires made of soft magnetic materials, in contrast to thin strips, host domain walls of two distinct topologies. Following 15 years of theoretical predictions of the unique dynamic features of such walls, such as absence of Walker breakdown, we report on experiments here. Unexpectedly, we evidence the dynamic transformation of topology upon wall motion above a field threshold, a phenomenon that had been previously overlooked. Micromagnetic simulations highlight the underlying phenomenon for one type of transformation, involving the nucleation of a Bloch-point singularity. This calls for reexamining existing predictions, and further experiments to highlight the conditions favoring the transformation.

Anglický abstrakt

Cylindrical nanowires made of soft magnetic materials, in contrast to thin strips, host domain walls of two distinct topologies. Following 15 years of theoretical predictions of the unique dynamic features of such walls, such as absence of Walker breakdown, we report on experiments here. Unexpectedly, we evidence the dynamic transformation of topology upon wall motion above a field threshold, a phenomenon that had been previously overlooked. Micromagnetic simulations highlight the underlying phenomenon for one type of transformation, involving the nucleation of a Bloch-point singularity. This calls for reexamining existing predictions, and further experiments to highlight the conditions favoring the transformation.

Klíčová slova

DYNAMICS; MOTION; FIELD

Klíčová slova v angličtině

DYNAMICS; MOTION; FIELD

Autoři

Wartelle, A.; Trapp, B.; Stano, M.; Thirion, C.; Bochmann, S.; Bachmann, J.; Foerster, M.; Aballe, L.; Mentos, TO.; Locatelli, A.; Sala, A.; Cagnon, L.; Toussaint, JC.; Fruchart, O.

Rok RIV

2020

Vydáno

29.01.2019

Nakladatel

AMER PHYSICAL SOC

Místo

COLLEGE PK

ISSN

2469-9950

Periodikum

Physical Review B

Svazek

99

Číslo

2

Stát

Spojené státy americké

Strany od

1

Strany do

6

Strany počet

6

URL

https://journals.aps.org/prb/abstract/10.1103/PhysRevB.99.024433

BibTex

@article{BUT163602,
  author="Wartelle, A. and Trapp, B. and Stano, M. and Thirion, C. and Bochmann, S. and Bachmann, J. and Foerster, M. and Aballe, L. and Mentos, TO. and Locatelli, A. and Sala, A. and Cagnon, L. and Toussaint, JC. and Fruchart, O.",
  title="Bloch-point-mediated topological transformations of magnetic domain walls in cylindrical nanowires",
  journal="Physical Review B",
  year="2019",
  volume="99",
  number="2",
  pages="1--6",
  doi="10.1103/PhysRevB.99.024433",
  issn="2469-9950",
  url="https://journals.aps.org/prb/abstract/10.1103/PhysRevB.99.024433"
}