Growth process of Y123 crystal grains in the film fabricated by TFA-MOD method

N. Mori, K. Yoshida, Y. Miyanaga, K. Yamada, Ryo Teranishi, Masashi Mukaida

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

To clarify the growth mechanism of YBa 2 Cu 3 O 7-X (Y123) crystals in the multi-coated film fabricated by the trifluoroacetates-metal organic deposition (TFA-MOD) method, the growth processes of Y123 crystal grains were studied by the experimental method and the numerical method. Microstructures of growing Y123 crystals were revealed through transmission electron microscopy (TEM) observations of the specimens quenched during the growth of Y123 crystals on LaAlO 3 (LAO) substrates. It was observed that some a-axis grains grow among many c-axis grains, and they have some terraces near the initial boundaries of multi-coated layers. The above terraces of a-axis grains were considered to form by the change in c-axis (c-plane) growth rate of a-axis grains, which may have some dislocations and/or stacking faults. The growth processes and the above microstructures of faceted Y123 crystal grains were also shown by the two-dimensional numerical simulation using c- and a-axes growth rate functions.

Original languageEnglish
Pages (from-to)1341-1344
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume469
Issue number15-20
DOIs
Publication statusPublished - Oct 15 2009

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Trifluoroacetic Acid
Metals
Crystals
metals
crystals
microstructure
Microstructure
Stacking faults
Crystallization
Dislocations (crystals)
Crystal growth
crystal defects
Numerical methods
Transmission electron microscopy
transmission electron microscopy
Computer simulation
Substrates
simulation

All Science Journal Classification (ASJC) codes

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

Cite this

Growth process of Y123 crystal grains in the film fabricated by TFA-MOD method. / Mori, N.; Yoshida, K.; Miyanaga, Y.; Yamada, K.; Teranishi, Ryo; Mukaida, Masashi.

In: Physica C: Superconductivity and its applications, Vol. 469, No. 15-20, 15.10.2009, p. 1341-1344.

Research output: Contribution to journalArticle

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AU - Yoshida, K.

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AU - Teranishi, Ryo

AU - Mukaida, Masashi

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AB - To clarify the growth mechanism of YBa 2 Cu 3 O 7-X (Y123) crystals in the multi-coated film fabricated by the trifluoroacetates-metal organic deposition (TFA-MOD) method, the growth processes of Y123 crystal grains were studied by the experimental method and the numerical method. Microstructures of growing Y123 crystals were revealed through transmission electron microscopy (TEM) observations of the specimens quenched during the growth of Y123 crystals on LaAlO 3 (LAO) substrates. It was observed that some a-axis grains grow among many c-axis grains, and they have some terraces near the initial boundaries of multi-coated layers. The above terraces of a-axis grains were considered to form by the change in c-axis (c-plane) growth rate of a-axis grains, which may have some dislocations and/or stacking faults. The growth processes and the above microstructures of faceted Y123 crystal grains were also shown by the two-dimensional numerical simulation using c- and a-axes growth rate functions.

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