Microstructure of Nd-Ga-O3 new seed layer for LPE growth of YBCO film

Seok Beom Kim; Sang Im Yoo; Yasuji Yamada

doi:10.1109/TASC.2003.811851

Microstructure of Nd-Ga-O₃ new seed layer for LPE growth of YBCO film

Seok Beom Kim, Sang Im Yoo, Yasuji Yamada

Research output: Contribution to journal › Conference article › peer-review

Abstract

The microstructure and crystallization mechanism of NdGaO₃ (NGO) new seed layer for liquid phase epitaxy (LPE) growth of YBa₂Cu₃O_7-δ (YBCO) were revealed using high resolution SEM and TEM. NGO layer deposited by PLD at room temperature shows that very porous and columnar structure and this layer indicated amorphous by x-ray analysis. Amorphous NGO layer was crystallized with good in-plane and out of plane orientations keeping columnar structure by simple post annealing process. Biaxially aligned YBCO thick films were successfully fabricated on oriented novel porous NGO new seed layer. Although many cracks were observed for normally LPE grown YBCO films on NGO(110) single crystalline substrate, it was crack-free formed on porous NGO(100) film.

Original language	English
Pages (from-to)	2571-2574
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	13
Issue number	2 III
DOIs	https://doi.org/10.1109/TASC.2003.811851
Publication status	Published - Jun 2003
Externally published	Yes
Event	2002 Applied Superconductivity Conference - Houston, TX, United States Duration: Aug 4 2002 → Aug 9 2002

Keywords

LPE
NdGaO
PLD
YBCO film

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/TASC.2003.811851

Cite this

@article{c83b6e5dd76d40b38faa7568932d6ef8,

title = "Microstructure of Nd-Ga-O3 new seed layer for LPE growth of YBCO film",

abstract = "The microstructure and crystallization mechanism of NdGaO3 (NGO) new seed layer for liquid phase epitaxy (LPE) growth of YBa2Cu3O7-δ (YBCO) were revealed using high resolution SEM and TEM. NGO layer deposited by PLD at room temperature shows that very porous and columnar structure and this layer indicated amorphous by x-ray analysis. Amorphous NGO layer was crystallized with good in-plane and out of plane orientations keeping columnar structure by simple post annealing process. Biaxially aligned YBCO thick films were successfully fabricated on oriented novel porous NGO new seed layer. Although many cracks were observed for normally LPE grown YBCO films on NGO(110) single crystalline substrate, it was crack-free formed on porous NGO(100) film.",

keywords = "LPE, NdGaO, PLD, YBCO film",

author = "Kim, {Seok Beom} and Yoo, {Sang Im} and Yasuji Yamada",

note = "Funding Information: Manuscript received August 6, 2002. This work was supported in part by the New Energy and Industrial Technology Development Organization (NEDO), and in part by a grant from the Center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Science and Technology, Republic of Korea. S. B. Kim is with the School of Electrical Engineering and Computer Science, Seoul National University, Seoul, Korea (e-mail: sbkim@ ee.snu.ac.kr). S. I. Yoo is with the School of Material Science and Engineering, Seoul National University, Seoul 151-744, Korea (e-mail: siyoo@plaza.snu.ac.kr). Y. Yamada is with the Superconductivity Research Laboratory (ISTEC), Tokyo 135-0062, Japan (e-mail: yamada@istec.or.jp). Digital Object Identifier 10.1109/TASC.2003.811851; 2002 Applied Superconductivity Conference ; Conference date: 04-08-2002 Through 09-08-2002",

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doi = "10.1109/TASC.2003.811851",

language = "English",

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journal = "IEEE Transactions on Applied Superconductivity",

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T1 - Microstructure of Nd-Ga-O3 new seed layer for LPE growth of YBCO film

AU - Kim, Seok Beom

AU - Yoo, Sang Im

AU - Yamada, Yasuji

N1 - Funding Information: Manuscript received August 6, 2002. This work was supported in part by the New Energy and Industrial Technology Development Organization (NEDO), and in part by a grant from the Center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Science and Technology, Republic of Korea. S. B. Kim is with the School of Electrical Engineering and Computer Science, Seoul National University, Seoul, Korea (e-mail: sbkim@ ee.snu.ac.kr). S. I. Yoo is with the School of Material Science and Engineering, Seoul National University, Seoul 151-744, Korea (e-mail: siyoo@plaza.snu.ac.kr). Y. Yamada is with the Superconductivity Research Laboratory (ISTEC), Tokyo 135-0062, Japan (e-mail: yamada@istec.or.jp). Digital Object Identifier 10.1109/TASC.2003.811851

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N2 - The microstructure and crystallization mechanism of NdGaO3 (NGO) new seed layer for liquid phase epitaxy (LPE) growth of YBa2Cu3O7-δ (YBCO) were revealed using high resolution SEM and TEM. NGO layer deposited by PLD at room temperature shows that very porous and columnar structure and this layer indicated amorphous by x-ray analysis. Amorphous NGO layer was crystallized with good in-plane and out of plane orientations keeping columnar structure by simple post annealing process. Biaxially aligned YBCO thick films were successfully fabricated on oriented novel porous NGO new seed layer. Although many cracks were observed for normally LPE grown YBCO films on NGO(110) single crystalline substrate, it was crack-free formed on porous NGO(100) film.

AB - The microstructure and crystallization mechanism of NdGaO3 (NGO) new seed layer for liquid phase epitaxy (LPE) growth of YBa2Cu3O7-δ (YBCO) were revealed using high resolution SEM and TEM. NGO layer deposited by PLD at room temperature shows that very porous and columnar structure and this layer indicated amorphous by x-ray analysis. Amorphous NGO layer was crystallized with good in-plane and out of plane orientations keeping columnar structure by simple post annealing process. Biaxially aligned YBCO thick films were successfully fabricated on oriented novel porous NGO new seed layer. Although many cracks were observed for normally LPE grown YBCO films on NGO(110) single crystalline substrate, it was crack-free formed on porous NGO(100) film.

KW - LPE

KW - NdGaO

KW - PLD

KW - YBCO film

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JF - IEEE Transactions on Applied Superconductivity

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