论文标题
弹道石墨烯库珀对分离器
A Ballistic Graphene Cooper Pair Splitter
论文作者
论文摘要
我们报告了在弹道传输方案中基于封装石墨烯的多发连接处的库珀对分裂的实验研究。我们的设备由两个横向连接组成，即超导体/石墨烯/超导体和正常金属/石墨烯/正常金属连接。在这种情况下，通过一个连接的电子传输可以通过沿另一个连接的偏置来调节。我们观察到在局部和非局部电子传输测量中库珀对分裂的明显特征。我们的实验数据可以通过使用修改的Octavio-Tinkham-Blonder-klapwijk模型和三端束分离器模型进行很好的描述。
We report an experimental study of Cooper pair splitting in an encapsulated graphene based multiterminal junction in the ballistic transport regime. Our device consists of two transverse junctions, namely the superconductor/graphene/superconductor and the normal metal/graphene/normal metal junctions. In this case, the electronic transport through one junction can be tuned by an applied bias along the other. We observe clear signatures of Cooper pair splitting in the local as well as nonlocal electronic transport measurements. Our experimental data can be very well described by using a modified Octavio-Tinkham-Blonder-Klapwijk model and a three-terminal beam splitter model.
