硅烯条纹的物理学
Physics of Silicene Stripes
摘要：
硅烯是一种紧密堆积在二维蜂窝晶格中的单层硅原子，是石墨烯硅领域中具有挑战性的假设反射，石墨烯是一种单原子厚的石墨片，目前是凝聚态物理中最热的材料。如果存在，它还将揭示新物理学和潜在应用的聚宝盆。在这里，我们揭示了外延生长的硅烯条纹自对准在各向异性银（110）表面上的大规模平行阵列。硅烯淘金热中的这一关键步骤可能会给硅在电子路线图上带来新的突破，并为广泛应用开辟最有前途的道路。这些硅烯条纹中的超导性暗示提出了有趣的问题，这些问题与成对的相关费米子、无质量狄拉克费米子和低维玻色子准粒子之间的微妙相互作用有关。
英文摘要：
Silicene, a monolayer of silicon atoms tightly packed into a two-dimensional honeycomb lattice, is the challenging hypothetical reflection in the silicon realm of graphene, a one-atom thick graphite sheet, presently the hottest material in condensed matter physics. If existing, it would also reveal a cornucopia of new physics and potential applications. Here, we reveal the epitaxial growth of silicene stripes self-aligned in a massively parallel array on the anisotropic silver (110) surface. This crucial step in the silicene gold rush could give a new kick to silicon on the electronics road-map and opens the most promising route towards wide-ranging applications. A hint of superconductivity in these silicene stripes poses intriguing questions related to the delicate interplay between paired correlated fermions, massless Dirac fermions and bosonic quasi-particules in low dimensions.
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