First-order magnetic phase transition in PrCo9Si4 and NdCo9Si4
| Autor: | M. Della Mea, M. El-Hagary, Gerfried Hilscher, K Hense, E. Bauer, Herwig Michor |
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| Rok vydání: | 2004 |
| Předmět: |
Phase transition
Materials science Condensed matter physics Specific heat Condensed Matter Physics Magnetic susceptibility Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Tetragonal crystal system Paramagnetism Ferromagnetism Electrical resistivity and conductivity Curie Condensed Matter::Strongly Correlated Electrons |
| Zdroj: | Journal of Magnetism and Magnetic Materials. :E445-E447 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2003.12.1164 |
| Popis: | The tetragonal compounds PrCo9Si4 and NdCo9Si4 have been studied by specific heat, electrical resistivity and magnetic susceptibility measurements. The onset of ferromagnetic order is observed at Curie temperatures TC≃24 and 12 K for PrCo9Si4 and NdCo9Si4, respectively. Thermodynamic and transport data of both compounds reveal a first-order phase transition from the paramagnetic to the ferromagnetic state which can be deduced from step like anomalies in the resistivity data as well as sharp peak-type anomalies of the specific heat. |
| Databáze: | OpenAIRE |
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