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A new 2D monolayer BiXene, M2C (M = Mo, Tc, Os)
Sun, WW; Li, YG; Wang, BT; Jiang, X; Katsnelson, MI; Korzhavyi, P; Eriksson, O; Di Marco, I; Wang BT(王保田)
2016
发表期刊NANOSCALE
卷号8期号:34页码:15753-15762
文章类型Article
摘要The existence of BiXenes, a new family of 2D monolayers, is hereby predicted. Theoretically, BiXenes have 1H symmetry (P (6) over bar m2) and can be formed from the 4d/5d binary carbides. As the name suggests, they are close relatives of MXenes, which instead have 1T symmetry (P (3) over bar m1). The newly found BiXenes, as well as some new MXenes, are shown to have formation energies close to that of germanene, which suggests that these materials should be possible to be synthesised. Among them, we illustrate that 1H-Tc2C and 1T-Mo2C are dynamically stable at 0 K, while 1H-Mo2C, 1T-Tc2C, 1H-Os2C, and 1T-Rh2C are likely to be stabilised via strain or temperature. In addition, the nature of the chemical bonding is analysed, emphasizing that the covalency between the transition metal ions and carbon is much stronger in BiXenes than in MXenes. The emergence of BiXenes can not only open up a new era of conducting 2D monolayers, but also provide good candidates for carrier materials aimed at energy storage and spintronic devices that have already been unveiled in MXenes.
学科领域Chemistry; Science & Technology - Other Topics; Materials Science; Physics
DOI10.1039/c6nr03602c
关键词[WOS]TRANSITION-METAL CARBIDES ; INITIO MOLECULAR-DYNAMICS ; THERMOELECTRIC-MATERIALS ; ELECTRON-GAS ; DICHALCOGENIDES ; STABILITY ; MXENES ; INTERCALATION ; CAPACITANCE ; CRYSTALS
收录类别SCI ; EI
语种英语
WOS类目Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号WOS:000382053300039
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260197
专题东莞分部
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Sun, WW,Li, YG,Wang, BT,et al. A new 2D monolayer BiXene, M2C (M = Mo, Tc, Os)[J]. NANOSCALE,2016,8(34):15753-15762.
APA Sun, WW.,Li, YG.,Wang, BT.,Jiang, X.,Katsnelson, MI.,...&王保田.(2016).A new 2D monolayer BiXene, M2C (M = Mo, Tc, Os).NANOSCALE,8(34),15753-15762.
MLA Sun, WW,et al."A new 2D monolayer BiXene, M2C (M = Mo, Tc, Os)".NANOSCALE 8.34(2016):15753-15762.
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