Mössbauer study of YBaCuFeO5+δ: site assignments of the metallic ions
| Autor: | Pierre Strobel, Y. Gros, Claire Meyer, F. Hartmann-Bourton |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
chemistry.chemical_classification
High-temperature superconductivity Mössbauer effect chemistry.chemical_element General Chemistry Crystal structure Condensed Matter Physics Copper law.invention Metal Crystallography chemistry law visual_art Mössbauer spectroscopy Materials Chemistry visual_art.visual_art_medium Antiferromagnetism Inorganic compound Nuclear chemistry |
| Zdroj: | Solid State Communications. 76:163-168 |
| ISSN: | 0038-1098 |
| DOI: | 10.1016/0038-1098(90)90535-j |
| Popis: | A detailed 57 Fe Mossbauer study of YBaCuFeO5+δ has been performed between 4.2 and 500 K. Below the antiferromagnetic ordering temperature TN = 446 K, the magnetic Mossbauer spectrum is unique, which suggests the existence of a single iron site; above TN there is only a very small quadrupolar splitting. Both facts can be explained by assuming that in the crystalline structure determined by Er-Rakho et al. [1], the 1b(1) site is occupied by iron and the 1b(2) site by copper. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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