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溴化锰单层的电子和磁性性质

Electronic and Magnetic Properties of Manganese Bromide Monolayers.

作者信息

de Jesus Guilherme Carlos Carvalho, Vasconcelos Railson da Conceição, do Vale Lucas Bezerra, de Menezes Rafael Ferreira, Sprenger Kayla G, Gargano Ricardo

机构信息

Institute of Physics, University of Brasília, Campus Darcy Ribeiro, Brasília, DF 70910-900, Brazil.

Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309-0401, United States.

出版信息

Langmuir. 2025 Mar 11;41(9):5877-5883. doi: 10.1021/acs.langmuir.4c04499. Epub 2025 Feb 25.

DOI:10.1021/acs.langmuir.4c04499
PMID:39999295
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11912539/
Abstract

This study investigates the electronic and magnetic properties of monolayer and bulk manganese bromide (MnBr) through simulations based on density functional. We computed the lattice parameters, band structures, and projected density of states, shedding light on the intrinsic magnetic behavior of MnBr. Our analysis of atomic magnetic moments indicates that the incomplete 3d orbital of the manganese atom, containing five electrons, drives the material's intrinsic magnetism. Additionally, our simulations reveal that the antiferromagnetic configuration is energetically more stable than the ferromagnetic configuration. Notable, We find that the MnBr system achieves its lowest energy state when the manganese magnetic moments are aligned perpendicular to the monolayer supercell plane. These findings highlight manganese bromide's potential as a candidate for future applications in nanoelectronics and spintronics.

摘要

本研究通过基于密度泛函的模拟,研究了单层和块状溴化锰(MnBr)的电子和磁性特性。我们计算了晶格参数、能带结构和投影态密度,揭示了MnBr的本征磁行为。我们对原子磁矩的分析表明,含有五个电子的锰原子的不完全3d轨道驱动了材料的本征磁性。此外,我们的模拟表明,反铁磁构型在能量上比铁磁构型更稳定。值得注意的是,我们发现当锰磁矩垂直于单层超晶胞平面排列时,MnBr系统达到其最低能量状态。这些发现突出了溴化锰作为未来纳米电子学和自旋电子学应用候选材料的潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e506/11912539/061d71793bd1/la4c04499_0011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e506/11912539/bc2c8b250648/la4c04499_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e506/11912539/e99aef1fb035/la4c04499_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e506/11912539/67eb62bc3fc9/la4c04499_0007.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e506/11912539/061d71793bd1/la4c04499_0011.jpg

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