High-Ic single-coat YBCO films prepared by the MOD process

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

doi:10.9714/psac.2011.13.4.022

High-I_c single-coat YBCO films prepared by the MOD process

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

Dept. of Materials Science & Engineering

Seoul National University

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

Abstract

A single-coat YBa₂Cu₃O_7-δ (YBCO) film of high critical currents (I_c) could be successfully fabricated by optimizing the viscosity of the coating solutionin the metal-organic deposition (MOD) process. From a Ba-deficient coating solution (Y: Ba: Cu = 1: 1.5: 3) having the viscosity of 212 mPa{dot operator}sec, 0.9 μm-thick single coat YBCO film with the I_c value of 289 A/cm-width (J_c = 3.2 MA/cm²) at 77 K was achievable on the SrTiO₃ (STO) substrate, which was superior to that of our previous report for 0.8 μm-thick single coat YBCO film from a stoichiometric coating solution (Y: Ba: Cu = 1: 2: 3) on the LaAlO₃3 (LAO) substrate. This result might be attributed to denser and more homogeneous microstrcuture in the case of the YBCO film from the Ba-deficient coating solution.

Original language	English
Pages (from-to)	22-25
Number of pages	4
Journal	Journal of the Korea Institute of Applied Superconductivity and Cryogenics
Volume	13
Issue number	4
DOIs	https://doi.org/10.9714/psac.2011.13.4.022
State	Published - Nov 2011

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title = "High-Ic single-coat YBCO films prepared by the MOD process",

abstract = "A single-coat YBa2Cu3O7-δ (YBCO) film of high critical currents (Ic) could be successfully fabricated by optimizing the viscosity of the coating solutionin the metal-organic deposition (MOD) process. From a Ba-deficient coating solution (Y: Ba: Cu = 1: 1.5: 3) having the viscosity of 212 mPa\{dot operator\}sec, 0.9 μm-thick single coat YBCO film with the Ic value of 289 A/cm-width (Jc = 3.2 MA/cm2) at 77 K was achievable on the SrTiO3 (STO) substrate, which was superior to that of our previous report for 0.8 μm-thick single coat YBCO film from a stoichiometric coating solution (Y: Ba: Cu = 1: 2: 3) on the LaAlO33 (LAO) substrate. This result might be attributed to denser and more homogeneous microstrcuture in the case of the YBCO film from the Ba-deficient coating solution.",

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

year = "2011",

month = nov,

doi = "10.9714/psac.2011.13.4.022",

language = "English",

volume = "13",

pages = "22--25",

journal = "Journal of the Korea Institute of Applied Superconductivity and Cryogenics",

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T1 - High-Ic single-coat YBCO films prepared by the MOD process

AU - Lee, J. W.

AU - Shin, G. M.

AU - Yoo, S. I.

PY - 2011/11

Y1 - 2011/11

N2 - A single-coat YBa2Cu3O7-δ (YBCO) film of high critical currents (Ic) could be successfully fabricated by optimizing the viscosity of the coating solutionin the metal-organic deposition (MOD) process. From a Ba-deficient coating solution (Y: Ba: Cu = 1: 1.5: 3) having the viscosity of 212 mPa{dot operator}sec, 0.9 μm-thick single coat YBCO film with the Ic value of 289 A/cm-width (Jc = 3.2 MA/cm2) at 77 K was achievable on the SrTiO3 (STO) substrate, which was superior to that of our previous report for 0.8 μm-thick single coat YBCO film from a stoichiometric coating solution (Y: Ba: Cu = 1: 2: 3) on the LaAlO33 (LAO) substrate. This result might be attributed to denser and more homogeneous microstrcuture in the case of the YBCO film from the Ba-deficient coating solution.

AB - A single-coat YBa2Cu3O7-δ (YBCO) film of high critical currents (Ic) could be successfully fabricated by optimizing the viscosity of the coating solutionin the metal-organic deposition (MOD) process. From a Ba-deficient coating solution (Y: Ba: Cu = 1: 1.5: 3) having the viscosity of 212 mPa{dot operator}sec, 0.9 μm-thick single coat YBCO film with the Ic value of 289 A/cm-width (Jc = 3.2 MA/cm2) at 77 K was achievable on the SrTiO3 (STO) substrate, which was superior to that of our previous report for 0.8 μm-thick single coat YBCO film from a stoichiometric coating solution (Y: Ba: Cu = 1: 2: 3) on the LaAlO33 (LAO) substrate. This result might be attributed to denser and more homogeneous microstrcuture in the case of the YBCO film from the Ba-deficient coating solution.

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ER -

High-I_c single-coat YBCO films prepared by the MOD process

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