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Josephson current in ballistic superconductor-graphene systems

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Josephson current in ballistic superconductor-graphene systems. / Hagymasi, Imre; Kormanyos, Andor; Cserti, József.
In: Physical review B, Vol. 82, No. 13, 134516 , 12.10.2010.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Hagymasi, I, Kormanyos, A & Cserti, J 2010, 'Josephson current in ballistic superconductor-graphene systems', Physical review B, vol. 82, no. 13, 134516 . https://doi.org/10.1103/PhysRevB.82.134516

APA

Hagymasi, I., Kormanyos, A., & Cserti, J. (2010). Josephson current in ballistic superconductor-graphene systems. Physical review B, 82(13), Article 134516 . https://doi.org/10.1103/PhysRevB.82.134516

Vancouver

Hagymasi I, Kormanyos A, Cserti J. Josephson current in ballistic superconductor-graphene systems. Physical review B. 2010 Oct 12;82(13):134516 . doi: 10.1103/PhysRevB.82.134516

Author

Hagymasi, Imre ; Kormanyos, Andor ; Cserti, József. / Josephson current in ballistic superconductor-graphene systems. In: Physical review B. 2010 ; Vol. 82, No. 13.

Bibtex

@article{5453d18069b649eeb1001077aa5c89cc,
title = "Josephson current in ballistic superconductor-graphene systems",
abstract = "We calculate the phase, the temperature and the junction length dependence of the supercurrent for ballistic graphene Josephson junctions. For low temperatures we find nonsinusoidal dependence of the supercurrent on the superconductor phase difference for both short and long junctions. The skewness, which characterizes the deviaton of the current-phase relation from a simple sinusoidal one, shows a linear dependence on the critical current for small currents. We discuss the similarities and differences with respect to the classical theory of Josephson junctions, where the weak link is formed by a diffusive or ballistic metal. The relation to other recent theoretical results on graphene Josephson junctions is pointed out and the possible experimental relevance of our work is considered as well.",
author = "Imre Hagymasi and Andor Kormanyos and J{\'o}zsef Cserti",
note = "{\textcopyright} 2010 The American Physical Society",
year = "2010",
month = oct,
day = "12",
doi = "10.1103/PhysRevB.82.134516",
language = "English",
volume = "82",
journal = "Physical review B",
issn = "1098-0121",
publisher = "AMER PHYSICAL SOC",
number = "13",

}

RIS

TY - JOUR

T1 - Josephson current in ballistic superconductor-graphene systems

AU - Hagymasi, Imre

AU - Kormanyos, Andor

AU - Cserti, József

N1 - © 2010 The American Physical Society

PY - 2010/10/12

Y1 - 2010/10/12

N2 - We calculate the phase, the temperature and the junction length dependence of the supercurrent for ballistic graphene Josephson junctions. For low temperatures we find nonsinusoidal dependence of the supercurrent on the superconductor phase difference for both short and long junctions. The skewness, which characterizes the deviaton of the current-phase relation from a simple sinusoidal one, shows a linear dependence on the critical current for small currents. We discuss the similarities and differences with respect to the classical theory of Josephson junctions, where the weak link is formed by a diffusive or ballistic metal. The relation to other recent theoretical results on graphene Josephson junctions is pointed out and the possible experimental relevance of our work is considered as well.

AB - We calculate the phase, the temperature and the junction length dependence of the supercurrent for ballistic graphene Josephson junctions. For low temperatures we find nonsinusoidal dependence of the supercurrent on the superconductor phase difference for both short and long junctions. The skewness, which characterizes the deviaton of the current-phase relation from a simple sinusoidal one, shows a linear dependence on the critical current for small currents. We discuss the similarities and differences with respect to the classical theory of Josephson junctions, where the weak link is formed by a diffusive or ballistic metal. The relation to other recent theoretical results on graphene Josephson junctions is pointed out and the possible experimental relevance of our work is considered as well.

U2 - 10.1103/PhysRevB.82.134516

DO - 10.1103/PhysRevB.82.134516

M3 - Journal article

VL - 82

JO - Physical review B

JF - Physical review B

SN - 1098-0121

IS - 13

M1 - 134516

ER -