Palgraphyne: A Promising 2D Carbon Dirac Semimetal with Strong Mechanical and Electronic Anisotropy,Physica Status Solidi-Rapid Research Letters

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Palgraphyne: A Promising 2D Carbon Dirac Semimetal with Strong Mechanical and Electronic Anisotropy
Physica Status Solidi-Rapid Research Letters ( IF 2.5 ) Pub Date : 2020-04-03 , DOI: 10.1002/pssr.202070020
Ding Zhao ₁ , Leyuan Cui ₁ , Jiangtao Cai ₂ , Yanqing Guo ₁ , Xin Cui ₁ , Tielei Song ₁ , Zhifeng Liu ₁

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2D carbon allotropes with various appealing properties are highly desirable for next‐generation carbon‐based nanoelectronics. Ding Zhao et al. (article number 1900670) propose a new 2D carbon Dirac semimetal, palgraphyne [pæl'græfain], which is composed of carbon skeleton of para‐xylene and acetylenic linkages. Their first‐principles calculations demonstrate that palgraphyne holds mechanical anisotropy with a sizable ratio up to 3.29 and electronic anisotropy with direction‐dependent Fermi velocities in which the smallest value is calculated to be 6.08 × 10⁵ m/s, while the highest value reaches up to 8.89 × 10⁵ m/s.

中文翻译：

Palgraphyne：具有强大机械和电子各向异性的有前途的二维碳狄拉克半金属

具有各种吸引人的特性的2D碳同素异形体对于下一代基于碳的纳米电子学是非常理想的。丁钊等。（商品编号1900670）提出了一种新的二维碳狄拉克半金属，palgraphyne [pæl'græfain]，它由对二甲苯的碳骨架和炔键组成。他们的第一性原理计算表明，palgraphyne具有高达3.29的可观比例的机械各向异性和具有费米速度依赖的方向的电子各向异性，其中最小值被计算为6.08×10 ⁵ m / s，而最大值达到了至8.89×10 ⁵ m / s

更新日期：2020-04-03

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