Two-stage dissipation in a superconducting microbridge: experiment and modeling

Río, Laura del; Altshuler, E.; Niratisairak, Sanyalak; Haugen, Øyvind Pernell; Johansen, T. H.; Davidson, B. A.; Testa, Gianluca; Sarnelli, E.

doi:10.1088/0953-2048/23/8/085005

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…Inhomogeneities, being accidental or intended ingredients in a superconducting material have been, and still are, a major concern in developing viable applications. From bulk materials [1][2][3][4][5] to tapes [6,7], coated conductors [8,9] and thin films [10][11][12], the effects of inhomogeneities on the superconducting properties have been studied extensively-typically exploring the relations between structural morphology and the thermal, electric and magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

Local transport in multi-filamentary superconductors: longitudinal versus transverse dissipation

Borroto

Río

Altshuler

et al. 2013

Supercond. Sci. Technol.

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Little is known on the electrical properties of superconducting tapes and coatings in the direction transverse to the long dimension of the composite. However, transverse dissipation can eventually determine the fate of a transmission line in the case of failure due to the presence of transversal cracks, and is also crucial in the AC regime. In this paper we present a detailed experimental study of the electrical transport properties along the transverse direction of Bi 2 Sr 2 Ca 2 Cu 3 O 10+x -Ag tapes, and compare them with those measured along the long axis of the material. We study in detail the influence of the tape's microstructure on electrical properties along both directions by using sliding electrodes. Our measurements suggest that there is always dissipation in the transverse direction for any value of the current. We also demonstrate that the local dissipation in the transverse direction has a nontrivial correlation with the local density of superconducting filaments.

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Section: Introductionmentioning

confidence: 99%

Local transport in multi-filamentary superconductors: longitudinal versus transverse dissipation

Borroto

Río

Altshuler

et al. 2013

Supercond. Sci. Technol.

Self Cite

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show abstract

“…Inhomogeneities have been a major concern in developing real-world applications for superconducting materials. From bulk materials [1][2][3][4][5][6][7] to tapes [8,9], coated conductors [10,11] and thin films [12][13][14], the effects of inhomogeneities on the superconducting properties have been systematically studied -typically exploring the relations between structural morphology and the thermal, electric and magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

Inverted anisotropy in the in-plane dissipation of BSCCO tapes: preliminary results

García-Gordillo¹,

Antunez²,

Altshuler³

et al. 2016

Preprint

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The electrical properties of superconducting tapes and coatings in the direction transverse to the long dimension of the composite has been rarely studied. However, transverse dissipation can eventually determine the behavior of a transmission line in the case of failure due to the presence of transversal cracks, and is also fundamental in the AC regime. In this paper we present a preliminary experimental study of the electrical transport properties along the transverse direction of BSCCOmetal tapes, and compare them with those measured along the long axis of the material. In spite of the fact that the tapes under study are not multi-filamentary, our experiments suggest that there is a measurable anisotropy of the transport properties between the longitudinal and transverse directions.

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“…From bulk superconductors [1][2][3][4][5] to wires, 6 tapes, 7,8 coated conductors, [9][10][11] and films, [12][13][14] the effects of inhomogeneities on the superconducting properties have been intensively studied-typically exploring the relations between morphology and the electric, magnetic, and thermal behavior of the materials. In composites where superconducting filaments are embedded in a metal matrix, there is obviously a large electromagnetic anisotropy between the longitudinal and transverse directions of the tape.…”

mentioning

confidence: 99%