Josephson current in a gapped graphene superconductor/barrier/ superconductor junction: Case of massive electrons
The Josephson effect in a gapped graphene-based superconductor/barrier/ superconductor junction is studied. The superconductivity in gapped graphene may be achieved by depositing conventional superconductor on the top of the gapped graphene such as graphene grown on SiC substrate. In gapped graphene...
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th-mahidol.121062018-05-03T15:43:44Z Josephson current in a gapped graphene superconductor/barrier/ superconductor junction: Case of massive electrons Tatnatchai Suwannasit I. Ming Tang Rassmidara Hoonsawat Bumned Soodchomshom Mahidol University Thailand Ministry of Education Materials Science Physics and Astronomy The Josephson effect in a gapped graphene-based superconductor/barrier/ superconductor junction is studied. The superconductivity in gapped graphene may be achieved by depositing conventional superconductor on the top of the gapped graphene such as graphene grown on SiC substrate. In gapped graphene system, the carriers exhibit massive Dirac fermions. We focus on the effect of pseudo-Dirac-like mass on the supercurrent. In contrast to that in the gapless graphene superconductor/ barrier/superconductor junction, we find that the supercurrent exhibits dependency of the Fermi energy. Also, the massive supercurrent anomalously oscillates as a function of the gate potential. This novel behavior is due to the effect of electrons acquiring mass in gapped graphene. © Springer Science+Business Media, LLC 2011. 2018-05-03T08:18:34Z 2018-05-03T08:18:34Z 2011-10-01 Article Journal of Low Temperature Physics. Vol.165, No.1-2 (2011), 15-26 10.1007/s10909-011-0380-y 15737357 00222291 2-s2.0-81055157987 https://repository.li.mahidol.ac.th/handle/123456789/12106 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=81055157987&origin=inward |
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Materials Science Physics and Astronomy Tatnatchai Suwannasit I. Ming Tang Rassmidara Hoonsawat Bumned Soodchomshom Josephson current in a gapped graphene superconductor/barrier/ superconductor junction: Case of massive electrons |
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The Josephson effect in a gapped graphene-based superconductor/barrier/ superconductor junction is studied. The superconductivity in gapped graphene may be achieved by depositing conventional superconductor on the top of the gapped graphene such as graphene grown on SiC substrate. In gapped graphene system, the carriers exhibit massive Dirac fermions. We focus on the effect of pseudo-Dirac-like mass on the supercurrent. In contrast to that in the gapless graphene superconductor/ barrier/superconductor junction, we find that the supercurrent exhibits dependency of the Fermi energy. Also, the massive supercurrent anomalously oscillates as a function of the gate potential. This novel behavior is due to the effect of electrons acquiring mass in gapped graphene. © Springer Science+Business Media, LLC 2011. |
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Mahidol University |
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Mahidol University Tatnatchai Suwannasit I. Ming Tang Rassmidara Hoonsawat Bumned Soodchomshom |
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Article |
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Tatnatchai Suwannasit I. Ming Tang Rassmidara Hoonsawat Bumned Soodchomshom |
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Tatnatchai Suwannasit |
title |
Josephson current in a gapped graphene superconductor/barrier/ superconductor junction: Case of massive electrons |
title_short |
Josephson current in a gapped graphene superconductor/barrier/ superconductor junction: Case of massive electrons |
title_full |
Josephson current in a gapped graphene superconductor/barrier/ superconductor junction: Case of massive electrons |
title_fullStr |
Josephson current in a gapped graphene superconductor/barrier/ superconductor junction: Case of massive electrons |
title_full_unstemmed |
Josephson current in a gapped graphene superconductor/barrier/ superconductor junction: Case of massive electrons |
title_sort |
josephson current in a gapped graphene superconductor/barrier/ superconductor junction: case of massive electrons |
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2018 |
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https://repository.li.mahidol.ac.th/handle/123456789/12106 |
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