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arXiv · 2411.09536

A Density Functional Theory Study of Magnetic Transition in MnO2 adsorbed Vanadium Carbide (V$_2$C) MXene

Mahjabeen Fatima·Saleem Ayaz Khan·Syed Rizwan
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Abstract

The work reports nonmagnetic behavior (0.04 $\mu$B) in two-dimensional (2D) V2C-OF MXene and ferromagnetism in MnO$_2$ adsorbed V2C-OF MXene. The density functional theory (DFT) calculations were carried out to study the magnetic moments of V$_2$C-OF and MnO$_2$@V$_2$C-OF MXene. The MXene, which is derived from the exfoliation of its parent V$_2$AlC MAX phase, shows a good potential to be a ferromagnetic when MnO$_2$ is adsorbed on it. The V$_2$C MXene and MnO$_2$ adsorbed V$_2$C MXene were successfully synthesized, as characterized using X-ray diffraction, showing an increased c-lattice parameter from 22.6{\AA} to 27.2{\AA} after MnO$_2$ adsorption. The DFT study confirmed that MnO$_2$ adsorbed V$_2$C MXene changed from nonmagnetic (in V$_2$C MXene) to a strong ferromagnetic with a magnetic moment of 4.48$\mu$B for Mn adsorbed V$_2$C-OF MXene. The current work is a step-forward towards understanding of magnetism in two-dimensional materials for future 2D spintronics.

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Mahjabeen Fatima, Saleem Ayaz Khan, Syed Rizwan. 2024-11-14. A Density Functional Theory Study of Magnetic Transition in MnO2 adsorbed Vanadium Carbide (V$_2$C) MXene. https://doi.org/10.1016/j.jmmm.2024.172749

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