SPICE model of high-temperature superconducting tape: application to resistive fault-current limiter

Kalinov, A. V.; Voloshin, I. F.; Fisher, L. M.

doi:10.1088/1361-6668/aa65a3

Cited by 7 publications

(7 citation statements)

References 32 publications

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“…Adaptation of this model to additional SPICE implementations should be straightforward. SPICE was recently adapted for use in modeling macroscopic high-critical-temperature superconducting wires [18]. However, until now, the component list in SPICE has not included superconducting nanowires, thus it has been impossible to quickly and easily model complex superconducting nanowire detector architectures using SPICE.…”

Section: Introductionmentioning

confidence: 99%

A superconducting nanowire can be modeled by using SPICE

Berggren

Zhao

Abebe

et al. 2018

Supercond. Sci. Technol.

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Modeling of superconducting nanowire single-photon detectors typically requires custom simulations or finite-element analysis in one or two dimensions. Here, we demonstrate two simplified one-dimensional SPICE models of a superconducting nanowire that can quickly and efficiently describe the electrical characteristics of a superconducting nanowire. These models may be of particular use in understanding alternative architectures for nanowire detectors and readouts.

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Section: Introductionmentioning

confidence: 99%

A superconducting nanowire can be modeled by using SPICE

Berggren

Zhao

Abebe

et al. 2018

Supercond. Sci. Technol.

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“…decreasing from the value I cmin at T 0 to vanish completely at the temperature T c . Disregarding a possible variation of n with temperature is another simplification we adopted similarly to some other studies [80,[97][98][99]. Inserting the relations (2-5) into (1) results in the basic equation analyzed further in this paper…”

Section: Formulation Of the Problemmentioning

confidence: 99%

Stability of DC transport in HTS conductor with local critical current reduction

Gömöry

Šouc

2021

Supercond. Sci. Technol.

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A common feature of commercially available conductors based on high-temperature superconducting compounds is the fluctuation of critical current along the length. Fortunately, the practice adopted by manufacturers nowadays is to supply the detailed I c(x) data with the conductor. Compared to knowing just the average of critical current, this should also allow a much better prediction of the conductor performance. Statistical methods are suitable for this purpose in the case when the fluctuations are regular at the low end of critical current distribution. However, a different approach is necessary at the presence of ‘weak spots’ that drop out of any statistics. Because of the strong nonlinearity of the current–voltage curve, such a location could transform into a ‘hot spot’ at transporting direct current (DC), with an abrupt increase of temperature endangering the conductor operation. We present a set of analytical formulas including the prediction of the maximum DC that could be carried sustainably before the thermal runaway appears. It is necessary to know the cooling conditions as well as the properties of the conductor constituents and their architecture. A formula for the voltage appearing on a weak spot, and its dependence on the DC, is also proposed. For this purpose the result of previous theoretical work has been slightly modified after comparing it with numerical iterative computations and finite element modeling. We demonstrate that the derived model allows a powerful analysis of experimental data comprising an estimation of the weak spot parameters i.e. its critical current and the length of the defect zone.

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“…There were numerous attempts to elaborate the superconducting electronics by adopting simulators, traditionally used for development the semiconducting circuits. Most popular and available CAD tools 19 for superconducting electronics involve the SPICE simulator 20,21 serving as a platform to design and implement models for the Josephson-based superconducting electronic circuits.…”

Section: Modelling the Ps And Sft Devicesmentioning

confidence: 99%

Modeling Computer Memory Based on Ferromagnetic/Superconductor Multilayers

Shafraniuk¹,

Nevirkovets

Mukhanov

2019

Phys. Rev. Applied

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A model of superconducting computer memory exploiting the orthogonal spin transfer (OST) in the pseudospin valve (PS) that is controlled by the three-terminal Josephson superconducting-ferromagnetic transistor (SFT) is developed. The building blocks of the memory are hybrid PS and SFT structures. The memory model is formulated in terms of the equation-defined PS and SFT devices integrated into the PS/SFT memory cell (MC) circuit. Logical units "0" and "1" are associated with the two PS states respectively characterized by two different values of resistance. Elementary logical operations comprising the read/write processes occur when a word pulse applied to the SFT's injector coincides with the respective bit pulse acting on MC. Physically, a word pulse triggers SFT to a resistive state, causing the PS switching between the logical "0" and "1" states. Thus, the whole switching dynamics of MC depends on the non-equilibrium and nonstationary properties of PS and SFT. Modeling the single MC as well as the larger MC-based circuits comprising respectively twelve and thirty elements suggest that such the memory cells can undergo ultrafast switching (sub-ns) and low energy consumption per operation (sub-100 fJ). The suggested model allows studying the influence of noises, punch-through effect, crosstalk, parasitic, etc. The obtained results suggest that the hybrid PS/SFT structures are well-suited to superconducting computing circuits as they are built of magnetic and non-magnetic transition metals and therefore have low impedances (1-30 ). c I achieving much better flexibility of control, as compared to a conventional Josephson junction, where the tilt is controlled only by I . (b) The time dependence of the JJ voltage   V  , where J t   is the dimensionless time, J  is the Josephson plasma frequency. Curves 1, 2, 3, and 4 are related respectively to 0.01, 0.03, 0.033 J   and 0.065. We emphasize that in SFT one can readily alter both, J  and J  by merely changing the injector current. I  for 0.05 J   (curve 1), 0.3 J   (curve 2) and 0.6 J   (curve 3). One can see the hysteresis (curve 4) that is larger for smaller J  . , , J J J J J dimensionless time, J  is the Josephson plasma frequency curves 1, 2, 3, and 4 are related respectively to 0.01, 0.03, 0.033 J   and 0.065. In Fig. 3, we show the time-averaged SFT d.c. return current curves   V  versus   I  for 0.05 J   (curve 1), 0.3 J   (curve 2) and 0.6 J   (curve 3). Remarkably, that in SFT one can readily alter both, J  and J  by merely

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SPICE model of high-temperature superconducting tape: application to resistive fault-current limiter

Cited by 7 publications

References 32 publications

A superconducting nanowire can be modeled by using SPICE

A superconducting nanowire can be modeled by using SPICE

Stability of DC transport in HTS conductor with local critical current reduction

Modeling Computer Memory Based on Ferromagnetic/Superconductor Multilayers

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