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$��$-biased Josephson tunnel junctions
2009The behavior of a long Josephson tunnel junction drastically depends on the distribution of the dc bias current. We investigate the case in which the bias current is fed in the central point of a one-dimensional junction. Such junction configuration has been recently used to detect the persistent currents circulating in a superconducting loop ...
Monaco, R. +3 more
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“Non-Josephson” radiation from Josephson tunnel junctions
Physics Letters, 1966Abstract Josephson tunnel junctions are observed to emit microwave radiation which does not obey the generalized Josephson frequency-voltage relation v = 2 eV/nh.
D.N. Langenberg +2 more
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Gapped annular Josephson tunnel junctions
Czechoslovak Journal of Physics, 1996The quantum-mechanical phase difference across the barrier of an annular, i.e. ring shaped Josephson tunnel junctions obeys to periodic boundary conditions which fix the algebraic sum of fluxons and antifluxons trapped in the barrier so that only fluxon-antifluxon pairs can be nucleated or annihilated.
Martucciello Nadia, Roberto Monaco
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Two-Dimensional Material Tunnel Barrier for Josephson Junctions and Superconducting Qubits.
Nano letters (Print), 2019Quantum computing based on superconducting qubits requires the understanding and control of the materials, device architecture, and operation. However, the materials for the central circuit element, the Josephson junctions, have mostly been focused on ...
Kan-Heng Lee +10 more
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Resonant macroscopic quantum tunneling in Josephson junctions
Journal of Superconductivity, 1992Many theoretical studies and some experiments have shown the possibility of several new secondary quantum effects in small Josephson junctions at low temperatures. We show that, within the well-established quantum picture of the junction, it is possible to experimentally observe sharp voltalge peaks at certain current values.
Ovchinnikov, Yu. N. +3 more
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Macroscopic quantum tunneling in long Josephson junctions
Physical Review B, 1990Expressions du rapport de nucleation de la phase de la fonction de Josephson dans les regimes d'effet tunnel et d'activation ...
, Simanjuntak, , Gunther
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Static properties of annular Josephson tunnel junctions
Physical Review B, 1996We have investigated the static configurations of the phase inside an annular Josephson tunnel junction in the presence of an externally applied magnetic field. For rings having a circumference less than the Josephson penetration depth analytical results are derived which extend the previous theory to (i) rings having finite width and (ii) rings with ...
Nadia Martucciello, Roberto Monaco
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Josephson tunneling in MgB2 break junctions
Physica C: Superconductivity, 2002Josephson effects in break junctions of MgB2 sintered at ambient pressure, have been investigated. The measured I-V characteristics of the junctions and the current step heights of the Shapiro steps can well be fitted with the resistively shunted junction model. Relatively large IcRn was obtained, which ranges from 1.4 to 4.2 mV.
Zhuang-Zhi Li +7 more
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Mixing in Josephson tunnel junctions
Physics Letters A, 1970Abstract Current structures at voltages corresponding to the mixing of RF field and junction resonant modes have been observed in strong-coupling Josephson junctions.
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Stabilization Time of Josephson Tunnel Junctions
Journal of Superconductivity and Novel Magnetism, 2015The stabilization time is from the initial state to the steady state. The resistive-capacitive-inductive shunted junction (RCLSJ) model was used to study the nonlinear dynamical behavior of Josephson tunnel junction (JJ). The stabilization time of JJs is calculated by the information of voltage waveform.
X. Liu +8 more
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