Anomalous Josephson Effect in Topological Insulator-Based Josephson Trijunction
/ Authors
Xiang-Pei Zhang, Zhaozheng Lyu, Guang Yang, Bing Li, Y. Hou, T. Le, Xiang Wang, Anqi Wang, Xiaopei Sun, Enna Zhuo
and 4 more authors
/ Abstract
We studied anomalous Josephson effect (AJE) in Josephson trijunctions fabricated on Bi2Se3, and found that the AJE in T-shaped trijunctions significantly alters the Majorana phase diagram of the trijunctions, when an in-plane magnetic field is applied parallel to two of the three single junctions. Such a phenomenon in topological insulator-based Josephson trijunction provides unambiguous evidence for the existence of AJE in the system, and may provide an additional knob for controlling the Majorana bound states in the Fu–Kane scheme of topological quantum computation.
Journal: Chinese Physics Letters