Edge supercurrent in Josephson junctions based on topological materials  

作　　者：Junjie Qi Chui-Zhen Chen Juntao Song Jie Liu Ke He Qing-Feng Sun X.C.Xie 

机构地区：[1]Beijing Academy of Quantum Information Sciences,Beijing 100193,China [2]School of Physical Science and Technology,Soochow University,Suzhou 215006,China [3]Institute for Advanced Study,Soochow University,Suzhou 215006,China [4]College of Physics and Hebei Advanced Thin Films Laboratory,Hebei Normal University,Shijiazhuang 050024,China [5]School of Physics,Xi’an Jiaotong University,Ministry of Education Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter,Xi’an 710049,China [6]State Key Laboratory of Low Dimensional Quantum Physics,Department of Physics,Tsinghua University,Beijing 100084,China [7]Frontier Science Center for Quantum Information,Beijing 100084,China [8]Hefei National Laboratory,Hefei 230088,China [9]International Center for Quantum Materials,School of Physics,Peking University,Beijing 100871,China [10]Interdisciplinary Center for Theoretical Physics and Information Sciences,Fudan University,Shanghai 200433,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2025年第2期1-12,共12页中国科学:物理学、力学、天文学(英文版)

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.12204053,and 92265103);the Innovation Program for Quantum Science and Technology(Grant No.2021ZD0302400)。

摘　　要：The interplay between novel topological states and superconductivity has garnered substantial interest due to its potential for topological quantum computing.The Josephson effect serves as a useful probe for edge superconductivity in these hybrid topological materials.In Josephson junctions based on topological materials,supercurrents exhibit unique quantum interference patterns,including the conventional Fraunhofer oscillations,theΦ_(0)-periodic oscillation,and the 2Φ_(0)-periodic oscillation in response to the external magnetic field(Φ_(0)=h/2e is the flux quantum,h the Planck constant,and e the electron charge).These interference patterns stem from varied Andreev reflection mechanisms and the associated current density profiles.This review seeks to comprehensively examine the theoretical and experimental advancements in understanding the quantum interference patterns of edge supercurrents in Josephson junctions based on quantum spin Hall,quantum Hall,and quantum anomalous Hall systems.

关 键 词：quantum Hall effect quantum spin Hall effect quantum anomalous Hall effect Josephson junction edge supercurrent Andreev reflection 

分 类 号：O469[理学—凝聚态物理]