SQUID oscillations in PbTe nanowire networks

Gao, Yichun1; Song, Wenyu1; Yu, Zehao1; Yang, Shuai1; Wang, Yuhao1; Li, Ruidong1; Chen, Fangting1; Geng, Zuhan1; Yang, Lining1; Xu, Jiaye1; Wang, Zhaoyu1; Li, Zonglin1; Zhang, Shan1; Feng, Xiao1,2,3,4; Wang, Tiantian2,4; Zang, Yunyi2,4; Li, Lin2; Shang, Runan2,4; Xue, Qi-Kun1,2,3,4,5; He, Ke1,2,3,4; Zhang, Hao1,2,3

2024-07-03

10.1103/PhysRevB.110.045405

PHYSICAL REVIEW B   影响因子和分区

2469-9950

2469-9969

Network structures by semiconductor nanowires hold great promise for advanced quantum devices, especially for applications in topological quantum computing. In this paper, we created networks of PbTe nanowires arranged in loop configurations. Using shadow-wall epitaxy, we defined superconducting quantum interference devices (SQUIDs) using the superconductor Pb. These SQUIDs exhibit oscillations in supercurrent upon the scanning of a magnetic field. Most of the oscillations can be fitted assuming a sinusoidal current-phase relation for each Josephson junction. Under certain conditions, the oscillations are found to be skewed, suggesting a possible deviation from a sinusoidal behavior. Our results highlight the potential of PbTe nanowires for building complex quantum devices in the form of networks.

SCI ; EI

英语

其他

National Natural Science Foundation of China[92065206] ; Innovation Program for Quantum Science and Technology[2021ZD0302400]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001267544600002

AMER PHYSICAL SOC

20242816679952

IV-VI semiconductors ; Lead compounds ; Molluscs ; Nanowires ; Quantum computers ; Quantum optics ; Shellfish ; Tellurium compounds

Biology:461.9 ; Marine Science and Oceanography:471 ; Semiconducting Materials:712.1 ; Computer Systems and Equipment:722 ; Light/Optics:741.1 ; Nanotechnology:761 ; Quantum Theory; Quantum Mechanics:931.4 ; Solid State Physics:933

PHYSICS

Web of Science

1.Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China
2.Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China
3.Frontier Sci Ctr Quantum Informat, Beijing 100084, Peoples R China
4.Hefei Natl Lab, Hefei 230088, Peoples R China
5.Southern Univ Sci & Technol, Shenzhen 518055, Peoples R China

Gao, Yichun,Song, Wenyu,Yu, Zehao,et al. SQUID oscillations in PbTe nanowire networks[J]. PHYSICAL REVIEW B,2024,110(4).

Gao, Yichun.,Song, Wenyu.,Yu, Zehao.,Yang, Shuai.,Wang, Yuhao.,...&Zhang, Hao.(2024).SQUID oscillations in PbTe nanowire networks.PHYSICAL REVIEW B,110(4).

Gao, Yichun,et al."SQUID oscillations in PbTe nanowire networks".PHYSICAL REVIEW B 110.4(2024).