Functional properties of Sm2NiMnO6 multiferroic ceramics prepared by spark plasma sintering
| Autor: | Simona Feraru, Felicia Gheorghiu, Isabelle Lisiecki, Valentina Musteata, Patricia Beaunier, Nicoleta Lupu, Lavinia Curecheriu, Mircea Nicolae Palamaru, Liliana Mitoseriu |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Condensed matter physics Rietveld refinement Mechanical Engineering Metals and Alloys Spark plasma sintering Mineralogy Dielectric Crystallinity Mechanics of Materials visual_art Materials Chemistry visual_art.visual_art_medium Multiferroics Ceramic High-resolution transmission electron microscopy Monoclinic crystal system |
| Zdroj: | Journal of Alloys and Compounds. 649:151-158 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2015.07.136 |
| Popis: | In the present work, it was reported for the first time the new synthesis of Sm 2 NiMnO 6 double perovskite oxides by sol–gel auto-combustion method. The Rietveld analysis of the X-ray ceramics diffraction pattern recorded at room temperature for Sm 2 NiMnO 6 ceramics sintered at 1000 °C/5 min from powders obtained at 700 °C/7 h confirm the formation of the double perovskite with a monoclinic structure and the space group P2 1 /n. The HRTEM analysis shows clear lattice fringes that confirm a high crystallinity level of the material corresponding to the monoclinic structure. The non-linear dielectric character was checked for the first time in Sm 2 NiMnO 6 double perovskite and the results reveals a strong nonlinearity and a small hysteretic behaviour. The present structural, magnetic and dielectric data make the Sm 2 NiMnO 6 system due to its multiferroic character a promising candidate to different modern electronic devices applications. |
| Databáze: | OpenAIRE |
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