Flux-creep and critical currents in various YBaCuO-samples

C. W. Hagen; M. R. Bom; R. Griessen; B. Dam; H. Veringa

doi:10.1016/0921-4534(88)90613-2

Flux-creep and critical currents in various YBaCuO-samples

C. W. Hagen^*, M. R. Bom, R. Griessen, B. Dam, H. Veringa

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

Using contactless torque measurements in magnetic fields up to 10 T we have investigated the flux-creep rate and critical currents of three types of Y₁Ba₂Cu₃O_≈7-samples: ceramic bulk, triode sputtered films and ceramic foils (thickness 700 μm) consisting of superconducting grains embedded in a polymer. The highest J_c {all equal to} 2. `0⁶ A/cm² is found for a 250 nm thick film sputtered on SrTiO with the c-axis perpendicular to the substrate. The creep-rate is strongly temperature dependent and is well described by a Kohlrausch behaviour (∝ exp -(t/t₀)^β with β ≅ 1 3.

Original language	English
Pages (from-to)	322-323
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	153-155
Issue number	PART 1
DOIs	https://doi.org/10.1016/0921-4534(88)90613-2
Publication status	Published - Jun 1988

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abstract = "Using contactless torque measurements in magnetic fields up to 10 T we have investigated the flux-creep rate and critical currents of three types of Y1Ba2Cu3O≈7-samples: ceramic bulk, triode sputtered films and ceramic foils (thickness 700 μm) consisting of superconducting grains embedded in a polymer. The highest Jc {all equal to} 2. `06 A/cm2 is found for a 250 nm thick film sputtered on SrTiO with the c-axis perpendicular to the substrate. The creep-rate is strongly temperature dependent and is well described by a Kohlrausch behaviour (∝ exp -(t/t0)β with β ≅ 1 3.",

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AU - Veringa, H.

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N2 - Using contactless torque measurements in magnetic fields up to 10 T we have investigated the flux-creep rate and critical currents of three types of Y1Ba2Cu3O≈7-samples: ceramic bulk, triode sputtered films and ceramic foils (thickness 700 μm) consisting of superconducting grains embedded in a polymer. The highest Jc {all equal to} 2. `06 A/cm2 is found for a 250 nm thick film sputtered on SrTiO with the c-axis perpendicular to the substrate. The creep-rate is strongly temperature dependent and is well described by a Kohlrausch behaviour (∝ exp -(t/t0)β with β ≅ 1 3.

AB - Using contactless torque measurements in magnetic fields up to 10 T we have investigated the flux-creep rate and critical currents of three types of Y1Ba2Cu3O≈7-samples: ceramic bulk, triode sputtered films and ceramic foils (thickness 700 μm) consisting of superconducting grains embedded in a polymer. The highest Jc {all equal to} 2. `06 A/cm2 is found for a 250 nm thick film sputtered on SrTiO with the c-axis perpendicular to the substrate. The creep-rate is strongly temperature dependent and is well described by a Kohlrausch behaviour (∝ exp -(t/t0)β with β ≅ 1 3.

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Flux-creep and critical currents in various YBaCuO-samples

Abstract

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