The Improved Critical Currents of MOD-Processed YBCO Thick Films with BaMO3 (M: Ce, Zr) and YBa2SnO5.5 Particles

Geo Myung Shin; Jung Woo Lee; Soon Mi Choi; Seung Hyun Moon; Sang Im Yoo

doi:10.1109/TASC.2014.2381559

The Improved Critical Currents of MOD-Processed YBCO Thick Films with BaMO₃ (M: Ce, Zr) and YBa₂SnO_5.5 Particles

Geo Myung Shin
, Jung Woo Lee
, Soon Mi Choi
, Seung Hyun Moon
, Sang Im Yoo

Dept. of Materials Science & Engineering

Seoul National University
Superconductor, Nano, and Advanced Materials (SuNAM) Company Ltd.

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

9 Scopus citations

Abstract

We report the effects of barium-based perovskite particle inclusions of BaCeO₃ (BCO), BaZrO₃ (BZO), and YBa₂SnO_5.5 (YBSO) on the thickness dependence of critical current density (J-_c) in metal organic deposition (MOD) -processed YBa₂Cu₃O₇-_δ (YBCO) films on the SrTiO₃ (STO) single-crystal substrate. With increasing film thickness, while BZO-doped YBCO films show a serious degradation in J_c, caused by the interlayer at the boundaries of multicoated layers, BCO- and YBSO- doped films exhibit a significant enhancement of J_c (77 K, self-field) over ∼1 μm thickness even though BCO- or YBSO-doped YBCO films have degraded in-plane textures compared with undoped films, implying that these perovskite dopants affect not only the pinning properties but also the growth of multicoated layers. The highest critical current (I_c) value over 440 A/cm-width, corresponding to J_c value of 1.8 MA/cm², was obtained from the 2.4- μm-thick YBSO-doped film.

Original language	English
Article number	6985616
Journal	IEEE Transactions on Applied Superconductivity
Volume	25
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2014.2381559
State	Published - 1 Jun 2015

Keywords

BaCeO
BaZrO
Flux pinning
Metal-organic deposition
Thickness dependence
YBaSnO
YBCO film

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10.1109/TASC.2014.2381559

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title = "The Improved Critical Currents of MOD-Processed YBCO Thick Films with BaMO3 (M: Ce, Zr) and YBa2SnO5.5 Particles",

abstract = "We report the effects of barium-based perovskite particle inclusions of BaCeO3 (BCO), BaZrO3 (BZO), and YBa2SnO5.5 (YBSO) on the thickness dependence of critical current density (J-c) in metal organic deposition (MOD) -processed YBa2Cu3O7-δ (YBCO) films on the SrTiO3 (STO) single-crystal substrate. With increasing film thickness, while BZO-doped YBCO films show a serious degradation in Jc, caused by the interlayer at the boundaries of multicoated layers, BCO- and YBSO- doped films exhibit a significant enhancement of Jc (77 K, self-field) over ∼1 μm thickness even though BCO- or YBSO-doped YBCO films have degraded in-plane textures compared with undoped films, implying that these perovskite dopants affect not only the pinning properties but also the growth of multicoated layers. The highest critical current (Ic) value over 440 A/cm-width, corresponding to Jc value of 1.8 MA/cm2, was obtained from the 2.4- μm-thick YBSO-doped film.",

keywords = "BaCeO, BaZrO, Flux pinning, Metal-organic deposition, Thickness dependence, YBaSnO, YBCO film",

author = "Shin, \{Geo Myung\} and Lee, \{Jung Woo\} and Choi, \{Soon Mi\} and Moon, \{Seung Hyun\} and Yoo, \{Sang Im\}",

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T1 - The Improved Critical Currents of MOD-Processed YBCO Thick Films with BaMO3 (M: Ce, Zr) and YBa2SnO5.5 Particles

AU - Shin, Geo Myung

AU - Lee, Jung Woo

AU - Choi, Soon Mi

AU - Moon, Seung Hyun

AU - Yoo, Sang Im

PY - 2015/6/1

Y1 - 2015/6/1

N2 - We report the effects of barium-based perovskite particle inclusions of BaCeO3 (BCO), BaZrO3 (BZO), and YBa2SnO5.5 (YBSO) on the thickness dependence of critical current density (J-c) in metal organic deposition (MOD) -processed YBa2Cu3O7-δ (YBCO) films on the SrTiO3 (STO) single-crystal substrate. With increasing film thickness, while BZO-doped YBCO films show a serious degradation in Jc, caused by the interlayer at the boundaries of multicoated layers, BCO- and YBSO- doped films exhibit a significant enhancement of Jc (77 K, self-field) over ∼1 μm thickness even though BCO- or YBSO-doped YBCO films have degraded in-plane textures compared with undoped films, implying that these perovskite dopants affect not only the pinning properties but also the growth of multicoated layers. The highest critical current (Ic) value over 440 A/cm-width, corresponding to Jc value of 1.8 MA/cm2, was obtained from the 2.4- μm-thick YBSO-doped film.

AB - We report the effects of barium-based perovskite particle inclusions of BaCeO3 (BCO), BaZrO3 (BZO), and YBa2SnO5.5 (YBSO) on the thickness dependence of critical current density (J-c) in metal organic deposition (MOD) -processed YBa2Cu3O7-δ (YBCO) films on the SrTiO3 (STO) single-crystal substrate. With increasing film thickness, while BZO-doped YBCO films show a serious degradation in Jc, caused by the interlayer at the boundaries of multicoated layers, BCO- and YBSO- doped films exhibit a significant enhancement of Jc (77 K, self-field) over ∼1 μm thickness even though BCO- or YBSO-doped YBCO films have degraded in-plane textures compared with undoped films, implying that these perovskite dopants affect not only the pinning properties but also the growth of multicoated layers. The highest critical current (Ic) value over 440 A/cm-width, corresponding to Jc value of 1.8 MA/cm2, was obtained from the 2.4- μm-thick YBSO-doped film.

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KW - BaZrO

KW - Flux pinning

KW - Metal-organic deposition

KW - Thickness dependence

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KW - YBCO film

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The Improved Critical Currents of MOD-Processed YBCO Thick Films with BaMO₃ (M: Ce, Zr) and YBa₂SnO_5.5 Particles

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