Josephson diode effect derived from short-range coherent coupling

作     者：Matsuo, Sadashige Imoto, Takaya Yokoyama, Tomohiro Sato, Yosuke Lindemann, Tyler Gronin, Sergei Gardner, Geoffrey C. Manfra, Michael J. Tarucha, Seigo 

作者机构：Center for Emergent Matter Science RIKEN Saitama351-0198 Japan Department of Physics Tokyo University of Science Tokyo162-8601 Japan Department of Material Engineering Science Graduate School of Engineering Science Osaka University 1-3 Machikaneyama Osaka Toyonaka Japan Birck Nanotechnology Center Purdue University IN47907 United States Department of Physics and Astronomy Purdue University IN47907 United States School of Materials Engineering Purdue University IN47907 United States School of Electrical and Computer Engineering Purdue University IN47907 United States RIKEN Center for Quantum Computing RIKEN Saitama351-0198 Japan 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2023年

核心收录：

主　　题：Diodes 

摘      要：Superconducting devices with broken time-reversal and spatial-inversion symmetries can exhibit novel superconducting phenomena. The observation of superconducting diode effects, which is applicable for dissipationless rectification, provides information on the breaking of such symmetries. We experimentally study a Josephson junction (JJ) coupled to another adjacent JJ as a new system exhibiting the superconducting diode effect. We demonstrate that the observed superconducting diode effect can be controlled non-locally based on the phase difference with the adjacent JJ. These results indicate that the time-reversal and spatial-inversion symmetries of a JJ are broken by the coherent coupling to an adjacent JJ, and this enables the engineering of novel superconducting phenomena mediated by coherent coupling among JJs and development of their applications for superconducting diode devices. © 2023, CC BY.