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September 24, 2025Proceedings of the National Academy of SciencesOpen Access

Spin-resolved imaging of atomic-scale helimagnetism in mono- and bilayer NiI 2

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Authors

MMMao-Peng MiaoNLNanshu LiuWZWenhao Zhang

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Overview

This research demonstrates spin-spiral orders in van der Waals magnets, highlighting noncollinear magnetism in mono- and bilayer NiI2.

Key Points

  • Distinct spin-spiral states with Q vectors found in mono- and bilayer NiI2, aligning and deviating by 7°.
  • Identified periodicities of 4.54 and 5.01 lattice constants in the magnetic orders through advanced imaging techniques.
  • Research utilizes spin-polarized scanning tunneling microscopy along with density functional theory calculations for validation.
  • Finding reveals collective spin switching behavior indicates potential applications in spintronic devices and advanced materials.

Cite This Study

Miao et al. (2025) studied this question.

synapsesocial.com/papers/68d6d82e8b2b6861e4c3e3c5https://doi.org/10.1073/pnas.2422868122
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