Platinum-enhanced densification of grain-aligned YBa2Cu 3O7-x films

J. A. Lewis; M. Wegmann; C. E. Platt; M. Teepe

doi:10.1063/1.110907

Platinum-enhanced densification of grain-aligned YBa₂Cu ₃O_7-x films

J. A. Lewis, M. Wegmann, C. E. Platt, M. Teepe

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

Abstract

Grain-aligned YBa₂Cu₃O_7-x films were fabricated by vacuum filtration in an applied magnetic field (7 T). Platinum (Pt) was shown to lower the peritectic temperature of YBa₂Cu ₃O_7-x by almost 75°C, leading to dramatic microstructural differences between films densified on MgO (single crystal) substrates and those densified on Pt foil to a maximum temperature of 1020°C in oxygen. Superconducting quantum-interference device hysteresis loops measured at 0-5.5 T at 5 K showed that films fired on Pt had ΔM (H _app∥c axis) values 15-60 times larger than those fired on MgO.

Original language	English (US)
Pages (from-to)	103-105
Number of pages	3
Journal	Applied Physics Letters
Volume	64
Issue number	1
DOIs	https://doi.org/10.1063/1.110907
State	Published - 1994
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.110907

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Cite this

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abstract = "Grain-aligned YBa2Cu3O7-x films were fabricated by vacuum filtration in an applied magnetic field (7 T). Platinum (Pt) was shown to lower the peritectic temperature of YBa2Cu 3O7-x by almost 75°C, leading to dramatic microstructural differences between films densified on MgO (single crystal) substrates and those densified on Pt foil to a maximum temperature of 1020°C in oxygen. Superconducting quantum-interference device hysteresis loops measured at 0-5.5 T at 5 K showed that films fired on Pt had ΔM (H app∥c axis) values 15-60 times larger than those fired on MgO.",

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AB - Grain-aligned YBa2Cu3O7-x films were fabricated by vacuum filtration in an applied magnetic field (7 T). Platinum (Pt) was shown to lower the peritectic temperature of YBa2Cu 3O7-x by almost 75°C, leading to dramatic microstructural differences between films densified on MgO (single crystal) substrates and those densified on Pt foil to a maximum temperature of 1020°C in oxygen. Superconducting quantum-interference device hysteresis loops measured at 0-5.5 T at 5 K showed that films fired on Pt had ΔM (H app∥c axis) values 15-60 times larger than those fired on MgO.

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