Detection of oxygen deficient regions in YBa2Cu3Ox superconductors by polarized optical microscopy

Masato Murakami, Masashi Yoshida, Hiroyuki Fujimoto, Satoshi Gotoh, Naoki Koshizuka, Shoji Tanaka

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We have found that oxygen deficient regions in YBa2Cu3Ox superconductors exhibit different colors from that of the matrix under polarized light. When oxygen annealing was insufficient, large melt-grown YBaCuO crystals occasionally contained narrow bands exhibiting different colors where the twin structure was absent. Upon annealing in oxygen atmosphere, these banded regions disappeared, indicating that these regions are oxygen deficient. Raman spectroscopy measurements also confirmed that such regions are oxygen deficient.

Original languageEnglish
Pages (from-to)796-797
Number of pages2
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume30
Issue number5 A
Publication statusPublished - 1991 May 1
Externally publishedYes

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Superconducting materials
Optical microscopy
microscopy
Oxygen
oxygen
Annealing
Color
color
annealing
Light polarization
polarized light
Raman spectroscopy
narrowband
atmospheres
Crystals
matrices
crystals

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Detection of oxygen deficient regions in YBa2Cu3Ox superconductors by polarized optical microscopy. / Murakami, Masato; Yoshida, Masashi; Fujimoto, Hiroyuki; Gotoh, Satoshi; Koshizuka, Naoki; Tanaka, Shoji.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 30, No. 5 A, 01.05.1991, p. 796-797.

Research output: Contribution to journalArticle

Murakami, Masato ; Yoshida, Masashi ; Fujimoto, Hiroyuki ; Gotoh, Satoshi ; Koshizuka, Naoki ; Tanaka, Shoji. / Detection of oxygen deficient regions in YBa2Cu3Ox superconductors by polarized optical microscopy. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 1991 ; Vol. 30, No. 5 A. pp. 796-797.
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