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 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
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Onozuka, T., Tokiwa, A., Syono, Y., Koike, Y., & Saito, Y. (1991). Changes in modulation period of Bi2Sr2 (Ca1-xNdx) Cu2Oa + δ and their relations to oxygen content. Physica C: Superconductivity and its applications, 185-189(PART 2), 885-886. https://doi.org/10.1016/0921-4534(91)91666-R