2D Materials When pure boron is evaporated onto a silver substrate, a structure made up of a single layer of boron atoms can form. Several different structures have been predicted and fabricated, but it is unclear whether the electronic properties of this so-called borophene can rival those of its better known cousin graphene. Feng et al. made a sheet of boron atoms on a silver substrate that had a characteristic striped and flat structure. Although the atoms were not arranged in a hexagonal lattice, like carbon atoms are in graphene, the electronic structure of borophene showed similar linearly dispersing electronic states, called Dirac cones. The discovery may lead to applications of monolayer boron in electronic devices. Phys. Rev. Lett. 118 , 096401 (2017).

中文翻译：

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硼单层中的狄拉克锥

二维材料 当纯硼蒸发到银基板上时，可以形成由单层硼原子组成的结构。已经预测和制造了几种不同的结构，但目前尚不清楚这种所谓的硼烯的电子特性是否可以与其更知名的表亲石墨烯相媲美。冯等人。在银基板上制作了一片硼原子，具有特征性的条纹和扁平结构。虽然原子没有排列在六边形晶格中，就像碳原子在石墨烯中一样，但硼烯的电子结构显示出类似的线性分散电子态，称为狄拉克锥。这一发现可能会导致单层硼在电子设备中的应用。物理。牧师莱特。118 , 096401 (2017)。