论文标题

基于BI2O2SE的Josephson Juntion中超流的大小和空间分布控制

Magnitude and Spatial Distribution Control of the Supercurrent in Bi2O2Se-Based Josephson Junction

论文作者

Ying, Jianghua, He, Jiangbo, Yang, Guang, Liu, Mingli, Lyu, Zhaozheng, Zhang, Xiang, Liu, Huaiyuan, Zhao, Kui, Jiang, Ruiyang, Ji, Zhongqing, Fan, Jie, Yang, Changli, Jing, Xiunian, Liu, Guangtong, Cao, Xuewei, Wang, Xuefeng, Lu, Li, Qu, Fanming

论文摘要

探索拓扑量子计算的许多建议是基于在具有强旋转轨道耦合(SOC)的材料上构建的超导量子设备。对于这些设备,高度要求对超潮流的大小和空间分布的完全控制,但到目前为止一直难以捉摸。我们在BI2O2SE的纳米板上构建了接近型约瑟夫森连接,这是一种具有强大SOC的新的新兴半导体。通过电控,我们表明可以完全打开和关闭超电流,并且可以通过散装或边缘配置其真实空间途径。我们的工作将BI2O2SE作为一个有前途的平台,用于构建多功能混合超导设备以及寻找拓扑超导性。

Many proposals in exploring topological quantum computation are based on superconducting quantum devices constructed on materials with strong spin-orbit coupling (SOC). For these devices, a full control on both the magnitude and the spatial distribution of the supercurrent would be highly demanded, but has been elusive up to now. We constructed proximity-type Josephson junction on nanoplates of Bi2O2Se, a new emerging semiconductor with strong SOC. Through electrical gating, we show that the supercurrent can be fully turned ON and OFF, and its real-space pathways can be configured either through the bulk or along the edges. Our work demonstrates Bi2O2Se as a promising platform for constructing multifunctional hybrid superconducting devices as well as for searching for topological superconductivity.

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