论文标题
透明的范德华超导式超导体 - 金属连接中的超导接近效应
Superconducting proximity effect in a transparent van der Waals superconductor-metal junction
论文作者
论文摘要
我们在干净的NBSE2-BILAYER石墨烯连接处报告了Andreev反射。该连接点的高透明度表现为高达1.8的大电导，使我们能够看到双层石墨烯中接近诱导的超导差距的明确证据，并通过垂直NBSE2-Gaphene和横向石墨烯与授权烯交界处通过垂直NBSE2-Gaphene和两个Andreeve反射。量子传输模拟捕获了实验数据的复杂性，并阐明了各种显微镜参数对连接传输的影响。我们的工作确立了对全瓦尔人，高性能超导交界的实践和理解。高度透明的近端石墨烯 - 透明烯连接的实现为工程师的新兴量子现象打开了可能性。
We report on Andreev reflections at clean NbSe2-bilayer graphene junctions. The high transparency of the junction, which manifests as a large conductance enhancement of up to 1.8, enables us to see clear evidence of a proximity-induced superconducting gap in bilayer graphene and two Andreev reflections through a vertical NbSe2-graphene and a lateral graphene-graphene junction respectively. Quantum transport simulations capture the complexity of the experimental data and illuminate the impact of various microscopic parameters on the transmission of the junction. Our work establishes the practice and understanding of an all-van-der-Waals, high-performance superconducting junction. The realization of a highly transparent proximized graphene-graphene junction opens up possibilities to engineer emergent quantum phenomena.
