Structure of subgrains in large single-grain RE-Ba-Cu-O (RE = Y, Sm, Nd) bulk superconductors

Kei Ogasawara; Naomichi Sakai; Masato Murakami

doi:10.1016/S0022-0248(01)01181-2

Structure of subgrains in large single-grain RE-Ba-Cu-O (RE = Y, Sm, Nd) bulk superconductors

Kei Ogasawara, Naomichi Sakai, Masato Murakami

Research output: Contribution to journal › Article

9 Citations (Scopus)

Abstract

We have studied the structures and misorientation angles of subgrains in large single-grain REBa₂Cu₃O_y (RE = Y, Sm, Nd) bulk superconductors by polarized optical microscopic observations and pole-figure measurements combined with micro-area X-ray diffraction analyses. We have found that subgrains were more elongated along the crystal growth direction with increasing misalignment, and that misorientation angles of the subgrains were almost comparable with those previously obtained on similar materials. We also discuss the possible mechanism for the subgrain formation.

Original language	English
Pages (from-to)	358-364
Number of pages	7
Journal	Journal of Crystal Growth
Volume	229
Issue number	1
DOIs	https://doi.org/10.1016/S0022-0248(01)01181-2
Publication status	Published - 2001 Jul 2
Externally published	Yes

Keywords

A1. Characterization
A1. Optical microscopy
A1. X-ray diffraction
A2. Top seeded solution growth
B1. Cuprates
B2. Superconducting materials

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

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Ogasawara, K., Sakai, N., & Murakami, M. (2001). Structure of subgrains in large single-grain RE-Ba-Cu-O (RE = Y, Sm, Nd) bulk superconductors. Journal of Crystal Growth, 229(1), 358-364. https://doi.org/10.1016/S0022-0248(01)01181-2

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abstract = "We have studied the structures and misorientation angles of subgrains in large single-grain REBa2Cu3Oy (RE = Y, Sm, Nd) bulk superconductors by polarized optical microscopic observations and pole-figure measurements combined with micro-area X-ray diffraction analyses. We have found that subgrains were more elongated along the crystal growth direction with increasing misalignment, and that misorientation angles of the subgrains were almost comparable with those previously obtained on similar materials. We also discuss the possible mechanism for the subgrain formation.",

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AU - Sakai, Naomichi

AU - Murakami, Masato

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KW - A1. Optical microscopy

KW - A1. X-ray diffraction

KW - A2. Top seeded solution growth

KW - B1. Cuprates

KW - B2. Superconducting materials

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