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PreprintCC BY 4.0arXiv

Collective dynamics in a one-dimensional Heisenberg ferromagnetic spin chain

  • R. Arun
  • M. Lakshmanan
  • Avadh Saxena
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Abstract

We investigate the different oscillatory modes, namely, complete synchronization, inphase synchronization, antiphase synchronization and desynchronization in a one-dimensional anisotropic Heisenberg ferromagnetic spin chain consisting of a large number of spins. By solving the associated Landau-Lifshitz-Gilbert-Slonczewski equation for the spins we show the simultaneous existence of the above mentioned oscillatory modes in the spins. We observe that when the number of the spins is large the synchronization is lost between the spins; however, we identify that the field-like torque is able to induce synchronous oscillations of the spins in the chain again. We also confirm the agreement of the numerically obtained values of the frequency of the inphase synchronized oscillations with the analytically obtained values.

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Cite

BibTeXRIS
BibTeX
@misc{arun2026collective,
  title = {{Collective dynamics in a one-dimensional Heisenberg ferromagnetic spin chain}},
  author = {R. Arun and M. Lakshmanan and Avadh Saxena},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2606.08149},
  eprint = {2606.08149},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.08149},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Collective dynamics in a one-dimensional Heisenberg ferromagnetic spin chain
AU  - R. Arun
AU  - M. Lakshmanan
AU  - Avadh Saxena
PY  - 2026
DA  - 2026/09/08
PB  - arXiv
DO  - 10.48550/arxiv.2606.08149
UR  - https://arxiv.org/abs/2606.08149
AB  - We investigate the different oscillatory modes, namely, complete synchronization, inphase synchronization, antiphase synchronization and desynchronization in a one-dimensional anisotropic Heisenberg ferromagnetic spin chain consisting of a large number of spins. By solving the associated Landau-Lifshitz-Gilbert-Slonczewski equation for the spins we show the simultaneous existence of the above mentioned oscillatory modes in the spins. We observe that when the number of the spins is large the synchronization is lost between the spins; however, we identify that the field-like torque is able to induce synchronous oscillations of the spins in the chain again. We also confirm the agreement of the numerically obtained values of the frequency of the inphase synchronized oscillations with the analytically obtained values.
ER  -