Abstract
Structural changes of long-period modulated structure (LPMS) of the Bi2Sr2(Ca1-xNdx) Cu2Oa + δ ceramics with x are investigated by means of electron diffraction. Increasing x, the modulation mode of the mixing of domains of two modulation periods with b=4.5bo and b=5bo changes to that with b=4.5bo and b=4bo through the modulation mode with only b=4.5bo at x=0.4-0.5. The wavenumber of the superlattice reflection shows a stepwise increase rather than a linear increase with x. Excess oxygen in a LPMS model with the site of excess oxygen is shown to be consistent with excess oxygen analyzed chemically by iodometry and its change with x.
| Original language | English |
|---|---|
| Pages (from-to) | 885-886 |
| Number of pages | 2 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 185-189 |
| Issue number | PART 2 |
| DOIs | |
| Publication status | Published - 1991 Dec 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Cite this
Changes in modulation period of Bi2Sr2 (Ca1-xNdx) Cu2Oa + δ and their relations to oxygen content. / Onozuka, Takashi; Yamamoto, Ayako; Syono, Yasuhiko; Koike, Yoji; Saito, Yoshitami.
In: Physica C: Superconductivity and its Applications, Vol. 185-189, No. PART 2, 01.12.1991, p. 885-886.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Changes in modulation period of Bi2Sr2 (Ca1-xNdx) Cu2Oa + δ and their relations to oxygen content
AU - Onozuka, Takashi
AU - Yamamoto, Ayako
AU - Syono, Yasuhiko
AU - Koike, Yoji
AU - Saito, Yoshitami
PY - 1991/12/1
Y1 - 1991/12/1
N2 - Structural changes of long-period modulated structure (LPMS) of the Bi2Sr2(Ca1-xNdx) Cu2Oa + δ ceramics with x are investigated by means of electron diffraction. Increasing x, the modulation mode of the mixing of domains of two modulation periods with b=4.5bo and b=5bo changes to that with b=4.5bo and b=4bo through the modulation mode with only b=4.5bo at x=0.4-0.5. The wavenumber of the superlattice reflection shows a stepwise increase rather than a linear increase with x. Excess oxygen in a LPMS model with the site of excess oxygen is shown to be consistent with excess oxygen analyzed chemically by iodometry and its change with x.
AB - Structural changes of long-period modulated structure (LPMS) of the Bi2Sr2(Ca1-xNdx) Cu2Oa + δ ceramics with x are investigated by means of electron diffraction. Increasing x, the modulation mode of the mixing of domains of two modulation periods with b=4.5bo and b=5bo changes to that with b=4.5bo and b=4bo through the modulation mode with only b=4.5bo at x=0.4-0.5. The wavenumber of the superlattice reflection shows a stepwise increase rather than a linear increase with x. Excess oxygen in a LPMS model with the site of excess oxygen is shown to be consistent with excess oxygen analyzed chemically by iodometry and its change with x.
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U2 - 10.1016/0921-4534(91)91666-R
DO - 10.1016/0921-4534(91)91666-R
M3 - Article
VL - 185-189
SP - 885
EP - 886
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - PART 2
ER -