Above-gap Conductance Anomaly Studied in Superconductor-Graphene-Superconductor Josephson Junctions
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, Jae-Hyun | - |
dc.contributor.author | Lee, Hu-Jong | - |
dc.contributor.author | Doh, Yong-Joo | - |
dc.date.accessioned | 2021-09-08T01:41:29Z | - |
dc.date.available | 2021-09-08T01:41:29Z | - |
dc.date.created | 2021-06-11 | - |
dc.date.issued | 2010-07 | - |
dc.identifier.issn | 0374-4884 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/116111 | - |
dc.description.abstract | We investigated the electrical transport properties of superconductor-graphene-superconductor (SGS) Josephson junctions. At low voltage bias, we observed the conventional proximity-coupled Josephson effect, such as supercurrent flow through graphene, a sub-gap structure of differential conductance due to Andreev reflection, and a periodic modulation of the critical current; I,. when a perpendicular magnetic field H is applied to the graphene. For high bias above the superconducting gap voltage, however, we observed an anomalous jump of the differential conductance, the voltage position of which is sensitive to the backgate voltage V-g. Our extensive study with varying temperature, and H reveals that the above-gap structure takes place at a characteristic power P* irrespective of V-g, for a given junction. The temperature and the H dependences of P* are well explained by an increase in the electron temperature in graphene. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | KOREAN PHYSICAL SOC | - |
dc.subject | BIPOLAR SUPERCURRENT | - |
dc.subject | ANDREEV REFLECTION | - |
dc.title | Above-gap Conductance Anomaly Studied in Superconductor-Graphene-Superconductor Josephson Junctions | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Doh, Yong-Joo | - |
dc.identifier.doi | 10.3938/jkps.57.149 | - |
dc.identifier.scopusid | 2-s2.0-77956195149 | - |
dc.identifier.wosid | 000280009100027 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.57, no.1, pp.149 - 155 | - |
dc.relation.isPartOf | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.citation.title | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.citation.volume | 57 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 149 | - |
dc.citation.endPage | 155 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Physics, Multidisciplinary | - |
dc.subject.keywordPlus | BIPOLAR SUPERCURRENT | - |
dc.subject.keywordPlus | ANDREEV REFLECTION | - |
dc.subject.keywordAuthor | Graphene | - |
dc.subject.keywordAuthor | Superconducting proximity effect | - |
dc.subject.keywordAuthor | Josephson supercurrent | - |
dc.subject.keywordAuthor | Above-gap conductance jump | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.