论文标题

使用超导相纹理控制Andreev绑定状态

Control of Andreev bound states using superconducting phase texture

论文作者

Banerjee, Abhishek, Geier, Max, Rahman, Md Ahnaf, Sanchez, Daniel S., Thomas, Candice, Wang, Tian, Manfra, Michael J., Flensberg, Karsten, Marcus, Charles M.

论文摘要

在垂直磁场的存在下,在超导体 - 触发器 - 渗透导体平面约瑟夫森交界处的两端的局部和非局部隧道光谱中,在局部和非局部隧道光谱中观察到了相反的阶段不对称状态。光谱特征与理论模型一致,产生了物理图片,其中超导中的相位纹理导致并控制安德里弗夫绑定状态在结中的位置,这表明了控制平面交界处的安德里夫状态的位置和大小的简单手段。

Andreev bound states with opposite phase-inversion asymmetries are observed in local and non-local tunneling spectra at the two ends of a superconductor-semiconductor-superconductor planar Josephson junction in the presence of a perpendicular magnetic field. Spectral signatures agree with a theoretical model, yielding a physical picture in which phase textures in superconducting leads localize and control the position of Andreev bound states in the junction, demonstrating a simple means of controlling the position and size of Andreev states within a planar junction.

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