Magnetism induced by Mn atom doping in SnO monolayer

doi:10.1088/1674-1056/27/11/117505

摘要/Abstract

摘要：

The structural, magnetic properties, and mechanism of magnetization of SnO monolayer doped with 3d transition metal Mn atom were studied using first-principles calculations. The calculated results show that the substitution doping is easier to realize under the condition of oxygen enrichment. Numerical results reveal that the spin-splitting defect state of the Mn doped system is produced in the band gap and the magnetic moment of 5.0 μ_B is formed. The induced magnetic moment by Mn_sub is mostly derived from the 3d orbital of the doped Mn atom. The magnetic coupling between magnetic moments caused by two Mn atoms in SnO monolayer is a long-range ferromagnetic, which is due to the hole-mediated p-p and p-d interactions. The calculated results suggest that room-temperature ferromagnetism in a SnO monolayer can be induced after substitutional doping of a Mn atom.

关键词: SnO monolayer, ferromagnetism, first-principles, doping

Abstract:

Key words: SnO monolayer, ferromagnetism, first-principles, doping

中图分类号: (Ferrimagnetics)

75.50.Gg

75.50.Pp (Magnetic semiconductors) 75.75.Lf (Electronic structure of magnetic nanoparticles)

韩瑞林, 闫羽. Magnetism induced by Mn atom doping in SnO monolayer[J]. 中国物理B, 2018, 27(11): 117505-117505.

Ruilin Han(韩瑞林), Yu Yan(闫羽). Magnetism induced by Mn atom doping in SnO monolayer[J]. Chin. Phys. B, 2018, 27(11): 117505-117505.

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