X-ray and neutron single-crystal diffraction study on La1.92Sr0.08CuO4-y
| Autor: | Katsuyoshi Oh-ishi, Tsuguo Fukuda, Kenji Hiraga, Tsuyoshi Kajitani, Tetsuo Sakurai, Makoto Hirabayashi, Syoichi Hosoya |
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| Rok vydání: | 1990 |
| Předmět: |
Diffraction
Materials science Crystal chemistry Neutron diffraction Energy Engineering and Power Technology chemistry.chemical_element Atmospheric temperature range Condensed Matter Physics Copper Electronic Optical and Magnetic Materials Tetragonal crystal system Crystallography Octahedron chemistry X-ray crystallography Electrical and Electronic Engineering |
| Zdroj: | Physica C: Superconductivity. 171:491-497 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/0921-4534(90)90262-d |
| Popis: | X-ray diffraction study on as-grown and quenched La 1.92 Sr 0.08 CuO 4- y single-crystals from 827 K or 1373 K was carried out. The symmetry of the quenched samples was kept tetragonal 14/mmm-type. An “apical-oxygen” located at 4e(00 z ) site with z =0.1806(5) is sitting closer to a copper at 2a(000) site in the quenched sample from 1373 K, by contrast with to an apical-oxygen at z =0.1823(3) in the as-grown sample. Neutron single-crystal diffraction study done in the temperature range from 7 to 150 K revealed some increase in the copper/apical-oxygen distance of a CuO 6 octahedron. |
| Databáze: | OpenAIRE |
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