Application of high-temperature superconducting small current limiting against over-current in low-noise amplifier electronic circuit

Liang, Le; Wang, Yu; Yan, Zhongming; He, Zhao; Wang, Ping; Chen, Weirong

doi:10.1016/j.physc.2019.04.011

Cited by 1 publication

(1 citation statement)

References 12 publications

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“…It has been demonstrated that thin, high-T c superconducting films can be successfully used for the design of such highspeed fault current limiters [15][16][17][18][19][20]. An important requirement for these films is that their V-I characteristics need to exhibit a wide range of nonlinear dissipative states.…”

Section: Introductionmentioning

confidence: 99%

Superconducting protector against electromagnetic pulses based on YBCO film prepared on an Al₂O₃ substrate with a CeO₂ sublayer

Vertelis¹,

Stankevič²,

Balevičius³

et al. 2021

Supercond. Sci. Technol.

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The electric and magnetic properties of microbridges made from 440 nm thick Y–Ba–Cu–O films prepared on Al2O3 substrates with CeO2 sublayers by the pulsed injection metal organic chemical vapor deposition (MOCVD) method were studied in temperatures ranging from 20 K to 300 K in order to investigate the possibilities of using these microbridges as fast fault current limiters. The application of an external magnetic field ( B ex ) causes the flux flow induced magneto-resistive effect, which is proportional to B ex and to B ex 1 / 2 at low and high temperatures, respectively. The experimentally obtained S-shaped I–V characteristic and the change of the microbridge resistance over time when affected by a step-like magnetic field can be well explained using a thermo-electrical model based on Joule heating and the flux flow nature of the resistive state (RS). The transition from the superconducting to the RS, studied using ns duration rectangular waveform electrical pulses able to create up to ≈2106 A cm−2 current densities without rises of microbridge temperatures, demonstrated that the I–V characteristics of the RSs consisting of an assembly of straight lines corresponding to the different pinning centers. At temperatures close to the critical temperature of superconductivity, the number of these lines increases, and the I–V characteristics can be described with high accuracy by a power law. It was concluded that microbridges made from these films can be used as protectors against complicated waveform electromagnetic pulses having short rise times, high voltage peak amplitudes and long low-value over-current ‘tails’.

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Section: Introductionmentioning

confidence: 99%

Superconducting protector against electromagnetic pulses based on YBCO film prepared on an Al₂O₃ substrate with a CeO₂ sublayer

Vertelis¹,

Stankevič²,

Balevičius³

et al. 2021

Supercond. Sci. Technol.

View full text Add to dashboard Cite

show abstract

Application of high-temperature superconducting small current limiting against over-current in low-noise amplifier electronic circuit

Cited by 1 publication

References 12 publications

Superconducting protector against electromagnetic pulses based on YBCO film prepared on an Al₂O₃ substrate with a CeO₂ sublayer

Superconducting protector against electromagnetic pulses based on YBCO film prepared on an Al₂O₃ substrate with a CeO₂ sublayer

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Application of high-temperature superconducting small current limiting against over-current in low-noise amplifier electronic circuit

Cited by 1 publication

References 12 publications

Superconducting protector against electromagnetic pulses based on YBCO film prepared on an Al2O3 substrate with a CeO2 sublayer

Superconducting protector against electromagnetic pulses based on YBCO film prepared on an Al2O3 substrate with a CeO2 sublayer

Contact Info

Product

Resources

About

Superconducting protector against electromagnetic pulses based on YBCO film prepared on an Al₂O₃ substrate with a CeO₂ sublayer

Superconducting protector against electromagnetic pulses based on YBCO film prepared on an Al₂O₃ substrate with a CeO₂ sublayer