Complex magnetism of the two-dimensional antiferromagnetic Ge<sub>2</sub>F: from a Néel spin-texture to a potential antiferromagnetic skyrmion

Ramadan, F.Z.; Santos, Flaviano José dos; Drissi, L.B.; Lounis, Samir

doi:10.1039/d0ra09678d

Cited by 6 publications

(2 citation statements)

References 63 publications

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“…Fang et al studied the possible magnetic parameters for the creation of AF-SkX . Despite these theoretical models, at present, few 2D AFM materials have been demonstrated to have skyrmion physics. − Actually, up to now, AF-SkX has not yet been realized in real 2D materials.…”

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confidence: 99%

Theoretical Prediction of Antiferromagnetic Skyrmion Crystal in Janus Monolayer CrSi₂N₂As₂

Dou

et al. 2022

ACS Nano

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An antiferromagnetic skyrmion crystal (AF-SkX), a regular array of antiferromagnetic skyrmions, is a fundamental phenomenon in the field of condensed-matter physics. So far, very few proposals have been made to realize the AF-SkX, and most have been based on three-dimensional (3D) materials. Herein, using first-principles calculations and Monte Carlo simulations, we report the identification of AF-SkX in a twodimensional lattice of the Janus monolayer CrSi 2 N 2 As 2 . Arising from the broken inversion symmetry and strong spin−orbit coupling, a large Dzyaloshinskii−Moriya interaction is obtained in the Janus monolayer CrSi 2 N 2 As 2 . This, combined with the geometric frustration of its triangular lattice, gives rise to the skyrmion physics and long-sought AF-SkX in the presence of an external magnetic field. More intriguingly, this system presents two different antiferromagnetic skyrmion phases, and such a phenomenon is distinct from those reported in 3D systems. Furthermore, by contacting with Sc 2 CO 2 , the creation and annihilation of AF-SkX in Janus monolayer CrSi 2 N 2 As 2 can be achieved through ferroelectricity. These findings greatly enrich the research on antiferromagnetic skyrmions.

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confidence: 99%

Theoretical Prediction of Antiferromagnetic Skyrmion Crystal in Janus Monolayer CrSi₂N₂As₂

Dou

et al. 2022

ACS Nano

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“…Physically, triggering by competing exchange interactions, 2D AFM systems can manifest topological spin textures as well, providing a new category of AFM skyrmion medium [30][31][32][33][34][35]. However, at present, few 2D AFM systems are demonstrated to be with skyrmion physics [47][48][49]. Actually, up to now, AF-SkX has not yet been realized in natural 2D materials [50].…”

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Antiferromagnetic skyrmion crystal in Janus monolayer CrSi2N2As2

Dou

et al. 2022

Preprint

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Antiferromagnetic skyrmion crystal (AF-SkX), a regular array of antiferromagnetic skyrmions, is a fundamental phenomenon in the field of condensed-matter physics. So far, only very few proposals have been made to realize the AF-SkX, and most based on three-dimensional (3D) materials. Herein, using first-principles calculations and Monte-Carlo simulations, we report the identification of AF-SkX in two-dimensional lattice of Janus monolayer CrSi2N2As2. Arising from the broken inversion symmetry and strong spin-orbit coupling, large Dzyaloshinskii–Moriya interaction is obtained in Janus monolayer CrSi2N2As2. This, combined with the geometric frustration of its triangular lattice, gives rise to the skyrmion physics and long-sought AF-SkX in the presence of external magnetic field. More intriguingly, this system presents two different antiferromagnetic skyrmion phases, and such phenomenon is distinct from those reported in 3D systems. Furthermore, by contacting with Sc2CO2, the creation and annihilation of AF-SkX in Janus monolayer CrSi2N2As2 can be achieved through ferroelectricity. These findings greatly enrich the research on antiferromagnetic skyrmions.

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Asynchronous strategy in the nucleation of Cr2Te3@FeTe Heterolayers: Synthesis and magnetic behaviors

Xia

Long

Peng

et al. 2023

Journal of Magnetism and Magnetic Materials

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Complex magnetism of the two-dimensional antiferromagnetic Ge₂F: from a Néel spin-texture to a potential antiferromagnetic skyrmion

Abstract: Based on density functional theory combined with low-energy models, we explore the magnetic properties of a hybrid atomic-thick two-dimensional (2D) material made of germanene doped with fluorine atoms in a half-fluorinated configuration (Ge2F).

Cited by 6 publications

References 63 publications

Theoretical Prediction of Antiferromagnetic Skyrmion Crystal in Janus Monolayer CrSi₂N₂As₂

Theoretical Prediction of Antiferromagnetic Skyrmion Crystal in Janus Monolayer CrSi₂N₂As₂

Antiferromagnetic skyrmion crystal in Janus monolayer CrSi2N2As2

Asynchronous strategy in the nucleation of Cr2Te3@FeTe Heterolayers: Synthesis and magnetic behaviors

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Complex magnetism of the two-dimensional antiferromagnetic Ge2F: from a Néel spin-texture to a potential antiferromagnetic skyrmion

Abstract: Based on density functional theory combined with low-energy models, we explore the magnetic properties of a hybrid atomic-thick two-dimensional (2D) material made of germanene doped with fluorine atoms in a half-fluorinated configuration (Ge2F).

Cited by 6 publications

References 63 publications

Theoretical Prediction of Antiferromagnetic Skyrmion Crystal in Janus Monolayer CrSi2N2As2

Theoretical Prediction of Antiferromagnetic Skyrmion Crystal in Janus Monolayer CrSi2N2As2

Antiferromagnetic skyrmion crystal in Janus monolayer CrSi2N2As2

Asynchronous strategy in the nucleation of Cr2Te3@FeTe Heterolayers: Synthesis and magnetic behaviors

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Complex magnetism of the two-dimensional antiferromagnetic Ge₂F: from a Néel spin-texture to a potential antiferromagnetic skyrmion

Theoretical Prediction of Antiferromagnetic Skyrmion Crystal in Janus Monolayer CrSi₂N₂As₂

Theoretical Prediction of Antiferromagnetic Skyrmion Crystal in Janus Monolayer CrSi₂N₂As₂