Self-heating effects and switching dynamics in graphene multiterminal Josephson junctions

被引：0

作者：

Kedves, Mate ^{[1
,2
]}

Papai, Tamas ^{[1
,2
]}

Fulop, Gergo ^{[1
,3
]}

Watanabe, Kenji ^{[4
]}

Taniguchi, Takashi ^{[5
]}

Makk, Peter ^{[1
,2
]}

Csonka, Szabolcs ^{[1
,3
,6
]}

机构：

[1] Budapest Univ Technol & Econ, Inst Phys, Dept Phys, Muegyet Rkp 3, H-1111 Budapest, Hungary

[2] MTA BME Correlated van der Waals Struct Momentum R, Muegyet Rkp 3, H-1111 Budapest, Hungary

[3] MTA BME Superconducting Nanoelect Momentum Res Grp, Muegyet Rkp 3, H-1111 Budapest, Hungary

[4] Natl Inst Mat Sci, Res Ctr Elect & Opt Mat, 1-1 Namiki, Tsukuba 3050044, Japan

[5] Natl Inst Mat Sci, Res Ctr Mat Nanoarchitecton, 1-1 Namiki, Tsukuba 3050044, Japan

[6] Inst Tech Phys & Mat Sci, Ctr Energy Res, Konkoly Thege Mikl Ut 29-33, H-1121 Budapest, Hungary

来源：

PHYSICAL REVIEW RESEARCH | 2024年 / 6卷 / 03期

基金：

欧洲研究理事会;

关键词：

All Open Access; Gold; Green;

D O I：

10.1103/PhysRevResearch.6.033143

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We experimentally investigate the electronic transport properties of a three-terminal graphene Josephson junction. We find that self-heating effects strongly influence the behavior of this multiterminal Josephson junction (MTJJ) system. We show that existing simulation methods based on resistively and capacitively shunted Josephson junction networks can be significantly improved by taking into account these heating effects. We also investigate the phase dynamics in our MTJJ by measuring its switching current distribution and find correlated switching events in different junctions. We show that the switching dynamics is governed by phase diffusion at low temperatures. Furthermore, we find that self-heating introduces additional damping that results in overdamped I-V characteristics when normal and supercurrents coexist in the device.

引用

页数：13

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