Lorentz-force dependence of the critical current for SmBCO coated conductor

Oh, Sangjun; Lee, Chulhee; Cho, Kyuhwan; Lee, Sangmoo; Youm, Dojun

doi:10.1063/1.3000627

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…Equations ( 10) and ( 11) have four-free fitting parameters, ξ(0), Δ(0), T c , and ΔC/C, i.e. the same number as one in the standard fitting function for the pinning force density, F p B appl [48][49][50][51]:…”

Section: Resultsmentioning

confidence: 99%

Comparison of highly-compressed C2/m-SnH₁₂ superhydride with conventional superconductors

Talantsev

2021

J. Phys.: Condens. Matter

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Satterthwaite and Toepke (1970 Phys. Rev. Lett. 25 741) predicted high-temperature superconductivity in hydrogen-rich metallic alloys, based on an idea that these compounds should exhibit high Debye frequency of the proton lattice, which boosts the superconducting transition temperature, T c. The idea has got full confirmation more than four decades later when Drozdov et al (2015 Nature 525 73) experimentally discovered near-room-temperature superconductivity in highly-compressed sulphur superhydride, H3S. To date, more than a dozen of high-temperature hydrogen-rich superconducting phases in Ba–H, Pr–H, P–H, Pt–H, Ce–H, Th–H, S–H, Y–H, La–H, and (La, Y)–H systems have been synthesized and, recently, Hong et al (2021 arXiv:2101.02846) reported on the discovery of C2/m-SnH12 phase with superconducting transition temperature of T c ∼ 70 K. Here we analyse the magnetoresistance data, R(T, B), of C2/m-SnH12 phase and report that this superhydride exhibits the ground state superconducting gap of Δ(0) = 9.2 ± 0.5 meV, the ratio of 2Δ(0)/k B T c = 3.3 ± 0.2, and 0.010 < T c/T F < 0.014 (where T F is the Fermi temperature) and, thus, C2/m-SnH12 falls into unconventional superconductors band in the Uemura plot.

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Section: Resultsmentioning

confidence: 99%

Comparison of highly-compressed C2/m-SnH₁₂ superhydride with conventional superconductors

Talantsev

2021

J. Phys.: Condens. Matter

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“…If the studied sample does not have metallic weak links, then equation ( 12) is reduced to an equation with the same number of free-fitting parameters (which are T onset c , R norm , F, k 1 ) as the standard fitting equation for the pinning force density [62][63][64][65]:…”

Section: )-(4)mentioning

confidence: 99%

Resistive transition of hydrogen-rich superconductors

Talantsev

Stolze

2021

Supercond. Sci. Technol.

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Critical temperature, T c, and transition width, ΔT c, are two primary parameters of the superconducting transition. The latter parameter reflects the superconducting state disturbance originating from the thermodynamic fluctuations, atomic disorder, applied magnetic field, the presence of secondary crystalline phases, applied pressure, etc. Recently, Hirsch and Marsiglio (2021 Phys. Rev. B 103 134505, doi: 10.1103/PhysRevB.103.134505) performed an analysis of the transition width in several near-room-temperature superconductors and reported that the reduced transition width, ΔT c/T c, in these materials does not follow the conventional trend of transition width broadening in applied magnetic field observed in low- and high-T c superconductors. Here, we present a thorough mathematical analysis of the magnetoresistive data, R(T, B), for the high-entropy alloy (ScZrNb)0.65[RhPd]0.35 and hydrogen-rich superconductors of Im-3m-H3S, C2/m-LaH10 and P63 /mmc-CeH9. We found that the reduced transition width, ΔT c/T c, in these materials follows a conventional broadening trend in applied magnetic field.

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Lorentz-force dependence of the critical current for SmBCO coated conductor

Abstract: Articles you may be interested inCurrent sharing between the metallic and superconducting layers of high temperature superconductor coated conductors operated above their critical current

Cited by 2 publications

References 16 publications

Comparison of highly-compressed C2/m-SnH₁₂ superhydride with conventional superconductors

Comparison of highly-compressed C2/m-SnH₁₂ superhydride with conventional superconductors

Resistive transition of hydrogen-rich superconductors

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Lorentz-force dependence of the critical current for SmBCO coated conductor

Abstract: Articles you may be interested inCurrent sharing between the metallic and superconducting layers of high temperature superconductor coated conductors operated above their critical current

Cited by 2 publications

References 16 publications

Comparison of highly-compressed C2/m-SnH12 superhydride with conventional superconductors

Comparison of highly-compressed C2/m-SnH12 superhydride with conventional superconductors

Resistive transition of hydrogen-rich superconductors

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Product

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Comparison of highly-compressed C2/m-SnH₁₂ superhydride with conventional superconductors

Comparison of highly-compressed C2/m-SnH₁₂ superhydride with conventional superconductors