High-Tc phase with a new modulation mode in the Bi, Pb-Sr-Ca-Cu-O system

Yasunori Ikeda, Mikio Takano, Zenji Hiroi, Kiichi Oda, Hitoshi Kitaguchi, Jun Takada, Yoshinari Miura, Yasuo Takeda, Osamu Yamamoto, Hiromasa Mazaki

Research output: Contribution to journalArticle

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Abstract

The preparation and characterization of Bi1.73Pb0.35Sr1.89Ca1.86Cu3O9.91, a lead-rich high-Tc phase, were studied (Tc(ρ=0)=105 K). This compound crystallized in a pseudotetragonal structure with at=0.541 nm and ct=3.709 nm, while a unique one-dimensional modulation with a wavelength of 4.7 nm (≈ 8.7 a) was found along the b axis using transmission electron microscopy. Such a lead-rich phase and a lead-free (or very poor) phase crystallizing in the well-known modulated structure (2.7 nm ≈ 5 a) were intergrown at intermediate compositions, such a Pb/Bi=1/9. Effects of annealing under different oxygen pressures were studied.

Original languageEnglish
Pages (from-to)2067-2070
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume27
Issue number11
Publication statusPublished - Nov 1988

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Lead
Modulation
modulation
Annealing
Transmission electron microscopy
Wavelength
preparation
transmission electron microscopy
annealing
Oxygen
oxygen
Chemical analysis
wavelengths

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Ikeda, Y., Takano, M., Hiroi, Z., Oda, K., Kitaguchi, H., Takada, J., ... Mazaki, H. (1988). High-Tc phase with a new modulation mode in the Bi, Pb-Sr-Ca-Cu-O system. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 27(11), 2067-2070.

High-Tc phase with a new modulation mode in the Bi, Pb-Sr-Ca-Cu-O system. / Ikeda, Yasunori; Takano, Mikio; Hiroi, Zenji; Oda, Kiichi; Kitaguchi, Hitoshi; Takada, Jun; Miura, Yoshinari; Takeda, Yasuo; Yamamoto, Osamu; Mazaki, Hiromasa.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 27, No. 11, 11.1988, p. 2067-2070.

Research output: Contribution to journalArticle

Ikeda, Y, Takano, M, Hiroi, Z, Oda, K, Kitaguchi, H, Takada, J, Miura, Y, Takeda, Y, Yamamoto, O & Mazaki, H 1988, 'High-Tc phase with a new modulation mode in the Bi, Pb-Sr-Ca-Cu-O system', Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, vol. 27, no. 11, pp. 2067-2070.
Ikeda, Yasunori ; Takano, Mikio ; Hiroi, Zenji ; Oda, Kiichi ; Kitaguchi, Hitoshi ; Takada, Jun ; Miura, Yoshinari ; Takeda, Yasuo ; Yamamoto, Osamu ; Mazaki, Hiromasa. / High-Tc phase with a new modulation mode in the Bi, Pb-Sr-Ca-Cu-O system. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 1988 ; Vol. 27, No. 11. pp. 2067-2070.
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