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PreprintarXiv licencearXiv

Giant staggered Dzyaloshinskii-Moriya vectors emerged in synthetic antiferromagnets with spatially alternating stress

  • Yuuga Iwata
  • Kensuke Hayashi
  • Reiju Furumaki
  • Satoshi Iihama
  • Masahiro Sato
  • Takahiro Moriyama
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Abstract

Dzyaloshinskii-Moriya (DM) interaction is a source of chiral magnetic physics, and it manifests microstructural symmetry which could link to exotic magnetic and electronic properties such as altermagnetism. For a new paradigm in magnetism and spintronics, it is crucial to have control on the DM interaction as well as ordering of the DM vectors which characterize the DM interaction. Here, we report on a strong interlayer DM interaction emerged in Co/Ru magnetic superlattices whose structural symmetry is unambiguously broken by alternating mechanical strains developed using the peculiar technique of our stress mechanism. Moreover, theoretical analyses reveal that our magnetic superlattices host a staggered order of the DM vectors. Our results indicate that the spatially varying strains with our breakthrough technique are quite effective in breaking the symmetry of the system and prove that it can control the DM interaction strength as well as the DM vector order.

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Cite

BibTeXRIS
BibTeX
@misc{iwata2026giant,
  title = {{Giant staggered Dzyaloshinskii-Moriya vectors emerged in synthetic antiferromagnets with spatially alternating stress}},
  author = {Yuuga Iwata and Kensuke Hayashi and Reiju Furumaki and Satoshi Iihama and Masahiro Sato and Takahiro Moriyama},
  howpublished = {arXiv},
  year = {2026},
  month = aug,
  doi = {10.48550/arxiv.2608.28953},
  eprint = {2608.28953},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2608.28953},
}
RIS
TY  - UNPB
TI  - Giant staggered Dzyaloshinskii-Moriya vectors emerged in synthetic antiferromagnets with spatially alternating stress
AU  - Yuuga Iwata
AU  - Kensuke Hayashi
AU  - Reiju Furumaki
AU  - Satoshi Iihama
AU  - Masahiro Sato
AU  - Takahiro Moriyama
PY  - 2026
DA  - 2026/08/28
PB  - arXiv
DO  - 10.48550/arxiv.2608.28953
UR  - https://arxiv.org/abs/2608.28953
AB  - Dzyaloshinskii-Moriya (DM) interaction is a source of chiral magnetic physics, and it manifests microstructural symmetry which could link to exotic magnetic and electronic properties such as altermagnetism. For a new paradigm in magnetism and spintronics, it is crucial to have control on the DM interaction as well as ordering of the DM vectors which characterize the DM interaction. Here, we report on a strong interlayer DM interaction emerged in Co/Ru magnetic superlattices whose structural symmetry is unambiguously broken by alternating mechanical strains developed using the peculiar technique of our stress mechanism. Moreover, theoretical analyses reveal that our magnetic superlattices host a staggered order of the DM vectors. Our results indicate that the spatially varying strains with our breakthrough technique are quite effective in breaking the symmetry of the system and prove that it can control the DM interaction strength as well as the DM vector order.
ER  -