Possibility of<i>c</i>-axis voltage steps for a cuprate superconductor in a resonant cavity

Tornes, I.; Stroud, D.

doi:10.1103/physrevb.68.052512

Cited by 5 publications

(4 citation statements)

References 16 publications

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“…The results shown in Figs. 1-3 are very similar to those obtained in Refs [11] and [33] for a single small junction coupled to a cavity. However, we see very different results if there is a soliton initially present in the junction.…”

Section: B Results With No Solitonsupporting

confidence: 87%

“…Hence, stacks of long junctions may be even more useful as such sources. Since the most anisotropic high-T c cuprate superconductors behave as stacks of long underdamped Josephson junctions, these natural materials, too, may serve as a source of coherent sub-THz radiation [33].…”

mentioning

confidence: 99%

“…Since the most anisotropic high-T c cuprate superconductors behave as stacks of long underdamped Josephson junctions, these natural materials, too, may serve as a source of coherent sub-THz radiation. 31 The remainder of this paper is arranged as follows. In Sec.…”

Section: Introductionmentioning

confidence: 99%

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Long Josephson junction in a resonant cavity

Tornes

Stroud

2005

Phys. Rev. B

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We present a model to describe an underdamped long Josephson junction coupled to a single-mode electromagnetic cavity, and carry out numerical calculations using this model in various regimes. The coupling may occur through either the electric or the magnetic field of the cavity mode. When a current is injected into the junction, we find that the time-averaged voltage exhibits self-induced resonant steps ͑SIRSs͒ due to coupling between the current in the junction and the electric field of the cavity mode. These steps are similar to those observed and calculated in small Josephson junctions. When a soliton is present in the junction ͑corresponding to a quantum of magnetic flux parallel to the junction plates͒, the SIRSs disappear if the electric field in the cavity is spatially uniform. If the cavity mode has a spatially varying electric field, there is a strong coupling between the soliton and the cavity mode. This coupling causes the soliton to become phase locked to the cavity mode, and produces steplike anomalies on the soliton branch of the I-V characteristics. If the coupling is strong enough, the frequency of the cavity mode is greatly redshifted from its uncoupled value. We present simple geometrical arguments which account for this behavior.

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Section: B Results With No Solitonsupporting

confidence: 87%

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confidence: 99%

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Long Josephson junction in a resonant cavity

Tornes

Stroud

2005

Phys. Rev. B

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“…At superconducting state, BEC of Cooper pairs in the CuO 2 layers extends through the all copper oxide layers with the plasma resonance frequency. In other words, superconductivity occurs in connection with a crossover from twodimensional (2D) to 3D transport below the critical transition temperature, T c [8][9][10][11][12]. So that, the perfectly coupled layered mercury-based superconducting material has been proposed to serve as an example of exhibition of 3D-spatial BEC [6].…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Süperiletken Durumda Cıva Bazlı Bakır Oksit Katmanlı Süperiletkenin Özgül Kapasitanslarının Tespiti

Çataltepe

2018

Cumhuriyet Science Journal

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Mercury based copper oxide layered high temperature superconductor, which consists of superconductor-insulator-superconductor (SIS) layers, can be considered as a stack of nearly ideal, intrinsic Josephson junctions (IJJ). The SIS junction, where the electrical field is confined, topologically resembles a parallel-plate capacitor. As is known, the coupling between junctions in superconductors is capacitive. Hence, the determination of the specific capacitance (C s) of the IJJ at the superconducting state has a crucial importance in order to give information about superconductivity mechanism. In this study, the C s values of the investigated sample have been calculated by means of the critical current density, J c and plasma frequency, that have been obtained from magnetic measurements taken at the below temperatures than the critical transition temperature, T c. Moreover, C s values at superconducting temperature have been compared to that of the normal temperature.

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Synchronization of strongly interacting overdamped Josephson junctions

Grib

Mans

Scherbel

et al. 2005

Physica Status Solidi (b)

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PACS 74.50.+r, 85.25.Dq The high frequency approximation is applied for the description of phase locking in the chain of two junctions loaded by the arbitrary resonance system providing strong coupling. The derived equation of synchronization describes phase locking for junctions which McCumber parameters of an order of magnitude larger than those described in ranges of the slowly varying amplitude approximation. The developed method is applied to the chain of junctions loaded by a resonant transmission line. Obtained values of the voltage locking interval and the maximal tolerant spread of critical currents are in agreement with numerical calculations.

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Possibility ofc-axis voltage steps for a cuprate superconductor in a resonant cavity

Cited by 5 publications

References 16 publications

Long Josephson junction in a resonant cavity

Long Josephson junction in a resonant cavity

Süperiletken Durumda Cıva Bazlı Bakır Oksit Katmanlı Süperiletkenin Özgül Kapasitanslarının Tespiti

Synchronization of strongly interacting overdamped Josephson junctions

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