High-Jc GdBa2Cu3O7-δ films fabricated by the metal-organic deposition process

J. W. Lee; G. M. Shin; S. H. Moon; S. I. Yoo

doi:10.1016/j.physc.2010.05.087

High-J_c GdBa₂Cu₃O_7-δ films fabricated by the metal-organic deposition process

J. W. Lee
, G. M. Shin
, S. H. Moon
, S. I. Yoo

Dept. of Materials Science & Engineering

Seoul National University
Nano and Advanced Materials Corporation

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

6 Scopus citations

Abstract

We report a successful fabrication of high-J_c GdBa ₂Cu₃O_{7 δ} (GdBCO) films by the metal-organic deposition process on the LaAlO₃ (LAO) (0 0 1) substrates. The coating solution was prepared by mixing Gd, Cu fluorine-free sources with Ba trifluoroacetate. Samples were dip-coated, pyrolized within 3 h at the temperature up to 400 °C in a humid oxygen atmosphere, and finally fired at various high temperatures in 100 ppm Ar/O₂ atmosphere. The GdBCO films fired at 775 and 800 °C exhibited J_c values of ∼2.1 MA/cm² at 77 K in a self-field, which are attributable to both high T_c,zero values of ∼89 K and high in-plane textures of 1.3-1.4°. Above 800 °C, however, the superconducting properties of GdBCO films are degraded due to the thermal decomposition of GdBCO film in 100 ppm Ar/O₂ atmosphere. Crown

Original language	English
Pages (from-to)	1253-1256
Number of pages	4
Journal	Physica C: Superconductivity and its Applications
Volume	470
Issue number	20
DOIs	https://doi.org/10.1016/j.physc.2010.05.087
State	Published - 1 Nov 2010

Keywords

Critical current density
GdBCO
Mod
Thin film

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@article{d91cf177b77648c695055956e00f9732,

title = "High-Jc GdBa2Cu3O7-δ films fabricated by the metal-organic deposition process",

abstract = "We report a successful fabrication of high-Jc GdBa 2Cu3O7 δ (GdBCO) films by the metal-organic deposition process on the LaAlO3 (LAO) (0 0 1) substrates. The coating solution was prepared by mixing Gd, Cu fluorine-free sources with Ba trifluoroacetate. Samples were dip-coated, pyrolized within 3 h at the temperature up to 400 °C in a humid oxygen atmosphere, and finally fired at various high temperatures in 100 ppm Ar/O2 atmosphere. The GdBCO films fired at 775 and 800 °C exhibited Jc values of ∼2.1 MA/cm2 at 77 K in a self-field, which are attributable to both high Tc,zero values of ∼89 K and high in-plane textures of 1.3-1.4°. Above 800 °C, however, the superconducting properties of GdBCO films are degraded due to the thermal decomposition of GdBCO film in 100 ppm Ar/O2 atmosphere. Crown",

keywords = "Critical current density, GdBCO, Mod, Thin film",

author = "Lee, \{J. W.\} and Shin, \{G. M.\} and Moon, \{S. H.\} and Yoo, \{S. I.\}",

year = "2010",

month = nov,

day = "1",

doi = "10.1016/j.physc.2010.05.087",

language = "English",

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pages = "1253--1256",

journal = "Physica C: Superconductivity and its Applications",

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T1 - High-Jc GdBa2Cu3O7-δ films fabricated by the metal-organic deposition process

AU - Lee, J. W.

AU - Shin, G. M.

AU - Moon, S. H.

AU - Yoo, S. I.

PY - 2010/11/1

Y1 - 2010/11/1

N2 - We report a successful fabrication of high-Jc GdBa 2Cu3O7 δ (GdBCO) films by the metal-organic deposition process on the LaAlO3 (LAO) (0 0 1) substrates. The coating solution was prepared by mixing Gd, Cu fluorine-free sources with Ba trifluoroacetate. Samples were dip-coated, pyrolized within 3 h at the temperature up to 400 °C in a humid oxygen atmosphere, and finally fired at various high temperatures in 100 ppm Ar/O2 atmosphere. The GdBCO films fired at 775 and 800 °C exhibited Jc values of ∼2.1 MA/cm2 at 77 K in a self-field, which are attributable to both high Tc,zero values of ∼89 K and high in-plane textures of 1.3-1.4°. Above 800 °C, however, the superconducting properties of GdBCO films are degraded due to the thermal decomposition of GdBCO film in 100 ppm Ar/O2 atmosphere. Crown

AB - We report a successful fabrication of high-Jc GdBa 2Cu3O7 δ (GdBCO) films by the metal-organic deposition process on the LaAlO3 (LAO) (0 0 1) substrates. The coating solution was prepared by mixing Gd, Cu fluorine-free sources with Ba trifluoroacetate. Samples were dip-coated, pyrolized within 3 h at the temperature up to 400 °C in a humid oxygen atmosphere, and finally fired at various high temperatures in 100 ppm Ar/O2 atmosphere. The GdBCO films fired at 775 and 800 °C exhibited Jc values of ∼2.1 MA/cm2 at 77 K in a self-field, which are attributable to both high Tc,zero values of ∼89 K and high in-plane textures of 1.3-1.4°. Above 800 °C, however, the superconducting properties of GdBCO films are degraded due to the thermal decomposition of GdBCO film in 100 ppm Ar/O2 atmosphere. Crown

KW - Critical current density

KW - GdBCO

KW - Mod

KW - Thin film

UR - https://www.scopus.com/pages/publications/77957899956

U2 - 10.1016/j.physc.2010.05.087

DO - 10.1016/j.physc.2010.05.087

M3 - Article

AN - SCOPUS:77957899956

SN - 0921-4534

VL - 470

SP - 1253

EP - 1256

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 20

ER -

High-J_c GdBa₂Cu₃O_7-δ films fabricated by the metal-organic deposition process

Abstract

Keywords

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