Single-laser pulse toggle switching in CoHo and CoDy single layer alloys : when domain wall motion matters

B. Kunyangyuen; G. Malinowski; D. Lacour; J. -X. Lin; Y. Le Guen; L. D. Buda-Prejbeanu; S. Mangin; J. Gorchon; J. Hohlfeld; M. Hehn

Single-laser pulse toggle switching in CoHo and CoDy single layer alloys : when domain wall motion matters

Materials Science 2025-03-31 v1 Applied Physics Optics

Authors: B. Kunyangyuen , G. Malinowski , D. Lacour , J. -X. Lin , Y. Le Guen , L. D. Buda-Prejbeanu , S. Mangin , J. Gorchon , J. Hohlfeld , M. Hehn

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Abstract

Single pulse All Optical Helicity-Independent Toggle Switching is observed in CoHo and CoDy alloys single layers. An original reversal mechanism is reported which contrasts with those observed to date. It is shown that the reversal process is on the {\mu}s timescale involving the reorganization / coalescence of domains and domain walls. The toggle switching is explained considering the unbalanced magnetization distribution stabilized after the ultrashort laser pulse.

Keywords

CoHo CoDy single-layer alloy all-optical switching domain wall motion

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@article{arxiv.2503.22579,
  title  = {Single-laser pulse toggle switching in CoHo and CoDy single layer alloys : when domain wall motion matters},
  author = {B. Kunyangyuen and G. Malinowski and D. Lacour and J. -X. Lin and Y. Le Guen and L. D. Buda-Prejbeanu and S. Mangin and J. Gorchon and J. Hohlfeld and M. Hehn},
  journal= {arXiv preprint arXiv:2503.22579},
  year   = {2025}
}

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12 pages, 5 figures

Single-laser pulse toggle switching in CoHo and CoDy single layer alloys : when domain wall motion matters

Abstract

Keywords

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