Magnetic Triple-q State in Antiferromagnetic Monolayer Interfaced with Bismuthene

Chia-Ju Chen; Yu-Tung Lin; Chieh-Lin Lee; Nitin Kumar; Hung-Chin Lee; Yen-Hui Lin; Bo-Yao Wang; Stefan Bluegel; Gustav Bihlmayer; Pin-Jui Hsu

Magnetic Triple-q State in Antiferromagnetic Monolayer Interfaced with Bismuthene

Materials Science 2025-07-21 v2 Mesoscale and Nanoscale Physics

Authors: Chia-Ju Chen , Yu-Tung Lin , Chieh-Lin Lee , Nitin Kumar , Hung-Chin Lee , Yen-Hui Lin , Bo-Yao Wang , Stefan Bluegel , Gustav Bihlmayer , Pin-Jui Hsu

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Abstract

We have successfully fabricated the bismuthene covered Mn monolayer on Ag(111) by evaporating Mn atoms onto (p x root3)-Bi/Ag(111) at room temperature. By using spin-polarized scanning tunneling microscopy (SP-STM), we have resolved the magnetic triple-q (3Q) state. In combination with density-functional theory (DFT) calculations, the 3Q3-like spin texture is the magnetic ground state for the bismuthene covered Mn monolayer/Ag(111). Interestingly, the uniaxial magnetic anisotropy of 3Q3 state triggered by the bismuthene on top of Mn monolayer/Ag(111) has been revealed, which is consistent with the switching of 3Q3up and 3Q3down domains observed by SP-STM measurements with external magnetic fields.

Keywords

magnetic triple-q state bismuthene monolayer antiferromagnetic spin-polarized STM density functional theory magnetic anisotropy domain switching

Cite

@article{arxiv.2507.12946,
  title  = {Magnetic Triple-q State in Antiferromagnetic Monolayer Interfaced with Bismuthene},
  author = {Chia-Ju Chen and Yu-Tung Lin and Chieh-Lin Lee and Nitin Kumar and Hung-Chin Lee and Yen-Hui Lin and Bo-Yao Wang and Stefan Bluegel and Gustav Bihlmayer and Pin-Jui Hsu},
  journal= {arXiv preprint arXiv:2507.12946},
  year   = {2025}
}

Magnetic Triple-q State in Antiferromagnetic Monolayer Interfaced with Bismuthene

Abstract

Keywords

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