Skip to content
DraconiticResearch
Search Sources API
203,203 studies31 sourcesUpdated 34 min ago
Peer-reviewedCC BY 4.0Scientific Reports

Controlled nucleation of hopfions with field pulses

  • S. Castillo-Sepulveda
  • G. Saéz
  • R. M. Corona
  • D. Altbir
  • V. L. Carvalho-Santos
Open at sourcePDFDOICite

Abstract

We demonstrate a mechanism for the deterministic nucleation of magnetic hopfions in cylindrical nanopillars via transient magnetic field pulses. By exploiting a chiral magnetic cylinder with engineered surface uniaxial anisotropy, we show that field pulses trigger a non-equilibrium magnetization dynamics. Depending on the pulse amplitude, the system relaxes into distinct topologically protected energy minima, stabilizing either isolated hopfions or coexisting states with other three-dimensional solitons. This approach offers a framework for manipulating 3D topological textures without requiring localized spin-polarized currents, broadening the understanding of three-dimensional nanomagnetism.

Related

  1. Nucleation-type criticality with infinite number of free-energy minima beyond mean-field theory
    Jun Takahashi, Yoshihiko Nishikawa
    arXivPreprintCC BY 4.0Full textCondensed matterStatistical & nonlinear physicsarXiv
  2. Field-free and Sub-ns Magnetization Reversal in Synthetic Anti-ferromagnets using Sequential Spin-Orbit Torque and Spin-Transfer Torque Pulses
    Subham Das, Naveen Sisodia
    arXivPreprintarXiv licenceFull textCondensed matterarXiv
  3. Schwinger Pair Production in Superposed Electric-Field Pulses with Distinct Spatial Widths
    Abduweli Abdukerim
    arXivPreprintarXiv licenceFull textHigh-energy & particle physicsarXiv
  4. A continuous-mode quantum-optical representation of finite strong-field laser pulses in free space
    Szabolcs Hack, Attila Czirják, Péter Földi
    arXivPreprintarXiv licenceFull textQuantum physics & quantum informationarXiv
  5. Spinodal-controlled freeze-out and nucleation at the first-order superfluid-supersolid transition of a dipolar gas
    Wai Kui Wong
    arXivPreprintarXiv licenceFull textAtomic, molecular & optical physicsCondensed matterarXiv

Cite

BibTeXRIS
BibTeX
@article{castillosepulveda2026controlled,
  title = {{Controlled nucleation of hopfions with field pulses}},
  author = {S. Castillo-Sepulveda and G. Saéz and R. M. Corona and D. Altbir and V. L. Carvalho-Santos},
  journal = {Scientific Reports},
  year = {2026},
  month = oct,
  doi = {10.1038/s41598-026-75777-6},
  url = {https://www.nature.com/articles/s41598-026-75777-6},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Controlled nucleation of hopfions with field pulses
AU  - S. Castillo-Sepulveda
AU  - G. Saéz
AU  - R. M. Corona
AU  - D. Altbir
AU  - V. L. Carvalho-Santos
PY  - 2026
DA  - 2026/10/17
JO  - Scientific Reports
DO  - 10.1038/s41598-026-75777-6
UR  - https://www.nature.com/articles/s41598-026-75777-6
AB  - We demonstrate a mechanism for the deterministic nucleation of magnetic hopfions in cylindrical nanopillars via transient magnetic field pulses. By exploiting a chiral magnetic cylinder with engineered surface uniaxial anisotropy, we show that field pulses trigger a non-equilibrium magnetization dynamics. Depending on the pulse amplitude, the system relaxes into distinct topologically protected energy minima, stabilizing either isolated hopfions or coexisting states with other three-dimensional solitons. This approach offers a framework for manipulating 3D topological textures without requiring localized spin-polarized currents, broadening the understanding of three-dimensional nanomagnetism.
SN  - 2045-2322
ER  -