Transmission electron microscopic studies on crystallization of YBa 2Cu3O7-y films deposited by advanced TFA-MOD method

J. S. Matsuda; Y. Tokunaga; K. Nakaoka; R. Teranishi; Y. Aoki; H. Fuji; A. Yajima; Y. Yamada; T. Izumi; Y. Shiohara

doi:10.1016/j.physc.2005.01.086

Transmission electron microscopic studies on crystallization of YBa ₂Cu₃O_7-y films deposited by advanced TFA-MOD method

J. S. Matsuda, Y. Tokunaga, K. Nakaoka, R. Teranishi, Y. Aoki, H. Fuji, A. Yajima, Y. Yamada, T. Izumi, Y. Shiohara

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

9 Citations (Scopus)

Abstract

We have prepared Y123 quenched and fully crystallized films by the conventional and the advanced TFA-MOD processes. Then, we have investigated microstructures of the films by means of transmission electron microscopy, in order to understand the initial stage of the Y123 growth. As a result, it is found that Y-Ba-O-F grains firstly nucleate on LaAlO₃ single crystals as well as on CeO₂ buffered metal substrates both in the TFA-MOD processes. The Y-Ba-O-F is grown with epitaxially orientated relationship to the substrate. A BaCeO₃ reaction product layer is formed due to Ba diffusion from Y123 to CeO₂ mainly through the grain boundaries. At the crystallization temperature of 760 °C, the diffusion rate of Ba is slow. Therefore, it was found that the thickness of the BaCeO₃ layer does not increase much further with increasing the holding time until about 1000 min.

Original language	English
Pages (from-to)	1051-1055
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	426-431
Issue number	II
DOIs	https://doi.org/10.1016/j.physc.2005.01.086
Publication status	Published - 2005
Externally published	Yes
Event	Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity - Duration: Nov 23 2004 → Nov 25 2004

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2005.01.086

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Matsuda, J. S., Tokunaga, Y., Nakaoka, K., Teranishi, R., Aoki, Y., Fuji, H., Yajima, A., Yamada, Y., Izumi, T., & Shiohara, Y. (2005). Transmission electron microscopic studies on crystallization of YBa ₂Cu₃O_7-y films deposited by advanced TFA-MOD method. Physica C: Superconductivity and its applications, 426-431(II), 1051-1055. https://doi.org/10.1016/j.physc.2005.01.086

Matsuda, JS, Tokunaga, Y, Nakaoka, K, Teranishi, R, Aoki, Y, Fuji, H, Yajima, A, Yamada, Y, Izumi, T & Shiohara, Y 2005, 'Transmission electron microscopic studies on crystallization of YBa ₂Cu₃O_7-y films deposited by advanced TFA-MOD method', Physica C: Superconductivity and its applications, vol. 426-431, no. II, pp. 1051-1055. https://doi.org/10.1016/j.physc.2005.01.086

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title = "Transmission electron microscopic studies on crystallization of YBa 2Cu3O7-y films deposited by advanced TFA-MOD method",

abstract = "We have prepared Y123 quenched and fully crystallized films by the conventional and the advanced TFA-MOD processes. Then, we have investigated microstructures of the films by means of transmission electron microscopy, in order to understand the initial stage of the Y123 growth. As a result, it is found that Y-Ba-O-F grains firstly nucleate on LaAlO3 single crystals as well as on CeO2 buffered metal substrates both in the TFA-MOD processes. The Y-Ba-O-F is grown with epitaxially orientated relationship to the substrate. A BaCeO3 reaction product layer is formed due to Ba diffusion from Y123 to CeO2 mainly through the grain boundaries. At the crystallization temperature of 760 °C, the diffusion rate of Ba is slow. Therefore, it was found that the thickness of the BaCeO3 layer does not increase much further with increasing the holding time until about 1000 min.",

author = "Matsuda, {J. S.} and Y. Tokunaga and K. Nakaoka and R. Teranishi and Y. Aoki and H. Fuji and A. Yajima and Y. Yamada and T. Izumi and Y. Shiohara",

note = "Funding Information: This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications. ; Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity ; Conference date: 23-11-2004 Through 25-11-2004",

year = "2005",

doi = "10.1016/j.physc.2005.01.086",

language = "English",

volume = "426-431",

pages = "1051--1055",

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TY - JOUR

T1 - Transmission electron microscopic studies on crystallization of YBa 2Cu3O7-y films deposited by advanced TFA-MOD method

AU - Matsuda, J. S.

AU - Tokunaga, Y.

AU - Nakaoka, K.

AU - Teranishi, R.

AU - Aoki, Y.

AU - Fuji, H.

AU - Yajima, A.

AU - Yamada, Y.

AU - Izumi, T.

AU - Shiohara, Y.

N1 - Funding Information: This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.

PY - 2005

Y1 - 2005

N2 - We have prepared Y123 quenched and fully crystallized films by the conventional and the advanced TFA-MOD processes. Then, we have investigated microstructures of the films by means of transmission electron microscopy, in order to understand the initial stage of the Y123 growth. As a result, it is found that Y-Ba-O-F grains firstly nucleate on LaAlO3 single crystals as well as on CeO2 buffered metal substrates both in the TFA-MOD processes. The Y-Ba-O-F is grown with epitaxially orientated relationship to the substrate. A BaCeO3 reaction product layer is formed due to Ba diffusion from Y123 to CeO2 mainly through the grain boundaries. At the crystallization temperature of 760 °C, the diffusion rate of Ba is slow. Therefore, it was found that the thickness of the BaCeO3 layer does not increase much further with increasing the holding time until about 1000 min.

AB - We have prepared Y123 quenched and fully crystallized films by the conventional and the advanced TFA-MOD processes. Then, we have investigated microstructures of the films by means of transmission electron microscopy, in order to understand the initial stage of the Y123 growth. As a result, it is found that Y-Ba-O-F grains firstly nucleate on LaAlO3 single crystals as well as on CeO2 buffered metal substrates both in the TFA-MOD processes. The Y-Ba-O-F is grown with epitaxially orientated relationship to the substrate. A BaCeO3 reaction product layer is formed due to Ba diffusion from Y123 to CeO2 mainly through the grain boundaries. At the crystallization temperature of 760 °C, the diffusion rate of Ba is slow. Therefore, it was found that the thickness of the BaCeO3 layer does not increase much further with increasing the holding time until about 1000 min.

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DO - 10.1016/j.physc.2005.01.086

M3 - Conference article

AN - SCOPUS:25644457505

SN - 0921-4534

VL - 426-431

SP - 1051

EP - 1055

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - II

T2 - Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity

Y2 - 23 November 2004 through 25 November 2004

ER -

Transmission electron microscopic studies on crystallization of YBa ₂Cu₃O_7-y films deposited by advanced TFA-MOD method

Abstract

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