Joule heating effects in high-Transparency Josephson junctions

Matti Tomi, Mikhail R. Samatov, Andrey S. Vasenko, Antti Laitinen, Pertti Hakonen, Dmitry S. Golubev

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)
86 Downloads (Pure)


We study, both theoretically and experimentally, the features on the current-voltage characteristic of a highly transparent Josephson junction caused by transition of the superconducting leads to the normal state. These features appear due to the suppression of the Andreev excess current. We show that by tracing the dependence of the voltage, at which the transition occurs, on the bath temperature and by analyzing the suppression of the excess current by the bias voltage one can recover the temperature dependence of the heat flow out of the junction. We verify theory predictions by fabricating two highly transparent superconductor-graphene-superconductor (SGS) Josephson junctions with suspended and nonsuspended graphene as a nonsuperconducting section between Al leads. Applying the above mentioned technique we show that the cooling power of the suspended junction depends on the bath temperature as â Tbath3.1 close to the superconducting critical temperature.

Original languageEnglish
Article number134513
Number of pages9
JournalPhysical Review B
Issue number13
Publication statusPublished - 21 Oct 2021
MoE publication typeA1 Journal article-refereed


Dive into the research topics of 'Joule heating effects in high-Transparency Josephson junctions'. Together they form a unique fingerprint.

Cite this