Gate-Tunable Critical Current of the Three-Dimensional Niobium Nano-Bridge Josephson Junction
2023-08-02
状态已发表
摘要

Recent studies have shown that the critical currents of several metallic superconducting nanowires and Dayem bridges can be locally tuned using a gate voltage (Vg). Here, we report a gate-tunable Josephson junction structure constructed from a three-dimensional (3D) niobium nano-bridge junction (NBJ) with a voltage gate on top. Measurements up to 6 K showed that the critical current (Ic) of this structure can be tuned to zero by increasing Vg. The critical gate voltage Vgc was reduced to 16 V and may possibly be reduced further by reducing the thickness of the insulation layer between the gate and the NBJ. Furthermore, the flux modulation generated by Josephson interference of two parallel 3D NBJs can also be tuned using Vg in a similar manner. Therefore, we believe that this gate-tunable Josephson junction structure is promising for superconducting circuit fabrication at high integration levels.

关键词Josephson junction Gate voltage Critical current 3D nano-bridge junction
DOIarXiv:2308.00953
相关网址查看原文
出处Arxiv
WOS记录号PPRN:74223452
WOS类目Physics, Condensed Matter
资助项目National Natural Science Foundation of China[
文献类型预印本
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/381310
专题物质科学与技术学院
物质科学与技术学院_特聘教授组_王镇组
通讯作者Chen, Lei; Wang, Zhen
作者单位
1.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol SIMIT, Natl Key Lab Mat Integrated Circuits, Shanghai 200050, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China
推荐引用方式
GB/T 7714
Yu, Shujie,Chen, Lei,Pan, Yinping,et al. Gate-Tunable Critical Current of the Three-Dimensional Niobium Nano-Bridge Josephson Junction. 2023.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
个性服务
查看访问统计
谷歌学术
谷歌学术中相似的文章
[Yu, Shujie]的文章
[Chen, Lei]的文章
[Pan, Yinping]的文章
百度学术
百度学术中相似的文章
[Yu, Shujie]的文章
[Chen, Lei]的文章
[Pan, Yinping]的文章
必应学术
必应学术中相似的文章
[Yu, Shujie]的文章
[Chen, Lei]的文章
[Pan, Yinping]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。