Magnetic and transport properties of two-dimensional ferromagnet VSe2 with Se vacancies

Ma, Haoran; Ye, Haoshen; Wang, Jianli; Bai, Dongmei

doi:10.1016/j.jmmm.2023.170683

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Cited by 2 publications

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“…We find that iodine-containing materials have significantly large MAEs, 56 indicating their possible application in magnetoelectronics and spintronics. 57–59…”

Section: Resultsmentioning

confidence: 99%

Mechanical, magnetic and electronic properties of 2D MSX (M = Ti, V, Co and Ni, X = Br and I)

Li¹,

Li²,

Bai³

et al. 2023

Phys. Chem. Chem. Phys.

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“…We find that iodine-containing materials have significantly large MAEs, 56 indicating their possible application in magnetoelectronics and spintronics. 57–59…”

Section: Resultsmentioning

confidence: 99%

Mechanical, magnetic and electronic properties of 2D MSX (M = Ti, V, Co and Ni, X = Br and I)

Li¹,

Li²,

Bai³

et al. 2023

Phys. Chem. Chem. Phys.

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Control of the magnetic anisotropy and Curie temperature of monolayer 1T-CrTe2 for room temperature application

Yao,

Pan,

Xie

et al. 2023

Applied Physics Letters

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Magnetic units with large magnetic anisotropy energy (MAE) and high Curie temperature (Tc) are crucial for spintronic and quantum computing devices, which are a persisting demand for miniaturization of magnetic units. Using first-principles calculations and Monte Carlo simulation, it is found that monolayer 1T-CrTe2 exhibits strong perpendicular magnetic anisotropy with a MAE of approximately 5.29 meV and high Tc of ∼136 K. Interestingly, we find that the MAE and Tc of monolayer 1T-CrTe2 are tunable through electron/hole doping, strain, and heterostructure engineering. The magnetic easy-axis can be adjusted from out of plane to in plane, which is mainly attributed to the coupling between Te atomic orbitals (px, py). Second-order perturbation theory reveals that the spin–orbit coupling interaction between the occupied px and unoccupied py orbitals in opposite spin channel near Fermi level gives rise to negative contribution of MAE. Moreover, Tc can be enhanced to ∼230 K through super–superexchange mechanism of heterostructure due to the electron hopping between t2g/eg orbitals of Cr4+ ions and e1/a1 orbitals of Fe2+ ions. Importantly, we find that Tc can be boosted above room temperature by applying moderate strain (6%), ascribing to significant enhancement of MAE and exchange coupling constant. The present work indicates that monolayer 1T-CrTe2-based two-dimensional materials are very promising for room temperature application in magnetic storage and information processing.

show abstract

Magnetic and transport properties of two-dimensional ferromagnet VSe2 with Se vacancies

Cited by 2 publications

References 59 publications

Mechanical, magnetic and electronic properties of 2D MSX (M = Ti, V, Co and Ni, X = Br and I)

Mechanical, magnetic and electronic properties of 2D MSX (M = Ti, V, Co and Ni, X = Br and I)

Control of the magnetic anisotropy and Curie temperature of monolayer 1T-CrTe2 for room temperature application

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