Shapiro response of superconducting diode effect derived from Andreev molecules

The superconducting diode effect (SDE) is a phenomenon that has attracted significant attention for its potential to establish new Josephson junction (JJ) physics and its application as a rectifier in Josephson circuits. While many experimental platforms for SDE have been reported, only a few demonstrate high efficiency. One promising system is a JJ coherently coupled with a second JJ embedded in a superconducting loop, where SDE is controllable in direction via the phase difference. Here we study SDE in such devices under microwave irradiation. With the appearance of Shapiro steps, SDE efficiency increases as the microwave power is raised. Additionally, a finite voltage difference appears without any direct bias current at high microwave powers. These results are explained by the dynamics of the JJ's washboard potential, which are common to all SDE systems. Our findings enhance the understanding of SDE dynamics and expand their potential applications.

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Publication Details

Journal
Physical review. B./Physical review. B
Published
2025-03-12
DOI
https://doi.org/10.1103/physrevb.111.094512
Citations
3
Primary Topic
Topological Materials and Phenomena
Type
article
Field-Weighted Citation Impact
3.74

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article

Shapiro response of superconducting diode effect derived from Andreev molecules

Seigo Tarucha, Russell Deacon, Sergei Gronin, Shohei Kobayashi et al.
3 citations
Physical review. B./Physical review. B
Topological Materials and Phenomena
3.74
article

Shapiro response of superconducting diode effect derived from Andreev molecules

Seigo Tarucha, Russell Deacon, Sergei Gronin, Shohei Kobayashi, Sadashige Matsuo, Koji Ishibashi, Tomohiro Yokoyama, Yosuke Sato, Tyler Lindemann, G. C. Gardner, Michael J. Manfra
article en
3 citations

Abstract

The superconducting diode effect (SDE) is a phenomenon that has attracted significant attention for its potential to establish new Josephson junction (JJ) physics and its application as a rectifier in Josephson circuits. While many experimental platforms for SDE have been reported, only a few demonstrate high efficiency. One promising system is a JJ coherently coupled with a second JJ embedded in a superconducting loop, where SDE is controllable in direction via the phase difference. Here we study SDE in such devices under microwave irradiation. With the appearance of Shapiro steps, SDE efficiency increases as the microwave power is raised. Additionally, a finite voltage difference appears without any direct bias current at high microwave powers. These results are explained by the dynamics of the JJ's washboard potential, which are common to all SDE systems. Our findings enhance the understanding of SDE dynamics and expand their potential applications.

Physical review. B./Physical review. BVol. 111(9)
Tokyo University of Science (JP), Purdue University West Lafayette (US), Shanghai Institute for Science of Science (CN), RIKEN (JP), RIKEN Center for Emergent Matter Science (JP), Computing Center (RU), RIKEN Center for Quantum Computing, Institute of Science Tokyo (JP), The University of Osaka (JP)
U.S. Department of Energy, Murata Science Foundation, Japan Science and Technology Agency
Affordable and clean energy
Openalex Percentile: Top 8%
Topological Materials and Phenomena
3.74
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