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CoX (X = Cl and Br): multiple phases and magnetic properties of the Kagome lattice

The unique magnetic properties of two-dimensional (2D) materials have demonstrated huge potential for applications in nanodevices and spintronics. In this work, we propose a new Kagome lattice, Co 3 X 8 (X = Cl and Br), based on density functional theory (DFT) calculation. We find that Co/X in Co 3...

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Bibliographic Details
Published in:Nanoscale 2024-01, Vol.16 (3), p.1362-137
Main Authors: Bai, Haoyun, Yu, Zhichao, Feng, Jinxian, Liu, Di, Li, Weiqi, Pan, Hui
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Summary:The unique magnetic properties of two-dimensional (2D) materials have demonstrated huge potential for applications in nanodevices and spintronics. In this work, we propose a new Kagome lattice, Co 3 X 8 (X = Cl and Br), based on density functional theory (DFT) calculation. We find that Co/X in Co 3 X 8 has spontaneous movement in the lattice, resulting in 156- and 12-phases of Co 3 X 8 and diverse magnetic and electronic properties. We show that the magnetic and electronic properties of Co 3 X 8 can be engineered by strain, and the magnetic properties of Co 3 X 8 are highly related to the spontaneous movement of X. Moreover, the transmission property of 12-Co 3 X 8 shows clear angle-dependent features due to the symmetry breaking as caused by the spontaneous movement of X. Our findings may provide not only a possible Kagome lattice with unique properties, but also a strategy for designing nanodevices and for spintronics. We found a novel Kagome lattice, Co 3 X 8 , in which the spontaneous movement of Co or X leads to distinct phase and physical properties. The anisotropic transmission properties of 12-Co 3 X 8 make it possible to apply this lattice in nanodevices.
ISSN:2040-3364
2040-3372
DOI:10.1039/d3nr04762h