6533b823fe1ef96bd127e181
RESEARCH PRODUCT
Phase sticking in one-dimensional Josephson junction chains
J. JohanssonDavid SchaefferMagnus LindblomJack LidmarDavid B. HavilandAdem Ergülsubject
Condensed Matter::Quantum GasesPhysicsJosephson effectCondensed Matter - Mesoscale and Nanoscale PhysicsJosephson phaseCondensed matter physicsPhase (waves)FOS: Physical sciencesNanotechnologyJosephson energyCondensed Matter::Mesoscopic Systems and Quantum Hall EffectCondensed Matter PhysicsVDP::Mathematics and natural science: 400::Physics: 430Electronic Optical and Magnetic MaterialsPi Josephson junctionCondensed Matter::SuperconductivityMesoscale and Nanoscale Physics (cond-mat.mes-hall)Josephson junction chainsdescription
Published version of an article in the journal: Physical Review B - Condensed Matter and Materials Physics. Also available from the publisher at: http://dx.doi.org/10.1103/PhysRevB.88.104501 We studied current-voltage characteristics of long one-dimensional Josephson junction chains with Josephson energy much larger than charging energy, EJ EC. In this regime, typical I-V curves of the samples consist of a supercurrent-like branch at low-bias voltages followed by a voltage-independent chain current branch, Ichain at high bias. Our experiments showed that Ichain is not only voltage-independent but it is also practically temperature-independent up to T=0.7TC. We have successfully model the transport properties in these chains using a capacitively shunted junction model with nonlinear damping.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-04-15 | Physical Review B |