Effect of thermal history on Mossbauer signature and hyperfine interaction parameters of copper ferrite
| Autor: | S. J. Shah, S. V. Dulera, Kunal B. Modi, U. N. Trivedi, Usha Chandra, P. Y. Raval, C. R. Kathad |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Zeeman effect Condensed matter physics Spinel chemistry.chemical_element engineering.material Copper Condensed Matter::Materials Science Tetragonal crystal system Delafossite symbols.namesake chemistry Mössbauer spectroscopy engineering symbols Ferrite (magnet) Physics::Atomic Physics Hyperfine structure |
| Zdroj: | AIP Conference Proceedings. |
| ISSN: | 0094-243X |
| DOI: | 10.1063/1.4918159 |
| Popis: | Two specimens of copper ferrite, CuFe2O4, have been synthesized by double sintering ceramic technique with different thermal history i.e. slow cooled and quenched. X-ray diffractometry has confirmed single phase fcc spinel structure for slow cooled sample while tetragonal distortion is present in quenched sample. Mossbauer spectral analysis for slow-cooled copper ferrite reveals super position of two Zeeman split sextets along with paramagnetic singlet in the centre position corresponds to delafossite (CuFeO2) phase that is completely absent in quenched sample. The hyperfine interaction parameters are highly influenced by heat treatment employed. |
| Databáze: | OpenAIRE |
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