| Journal: | Revista mexicana de física |
| Database: | PERIÓDICA |
| System number: | 000460953 |
| ISSN: | 0035-001X |
| Authors: | Zaari, H1 Azahaf, C1 Lakouari, N1 Benyoussef, A1 EZ Zahraouy, H1 El Kenz, A1 |
| Institutions: | 1Mohammed V University of Rabat, Faculty of Sciences, Rabat, Rabat-Sale. Marruecos |
| Year: | 2018 |
| Season: | Nov-Dic |
| Volumen: | 64 |
| Number: | 6 |
| Pages: | 553-558 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, teórico |
| English abstract | We present a systematic first-principles study of the structural, magnetic and optical properties of perovskite-structure EuTiO3. This compound exists in different structures: cubic, tetragonal and presents multiferroic properties. Comparing the formation energy between tetragonal and cubic structures, the system has a tendency to symmetry lowering structural deformations composed of rotations of the oxygen octahedra, especially the I4/mcm phase is the most stable structure. Our calculations of the high symmetry cubic structural prototype show an antiferromagnetic order type G. We discuss the dynamical stability of Pm-3m, P4mm and I4-mcm structures, and the influence of some parameters on the magnetic coupling and the electrical polarization |
| Disciplines: | Física y astronomía |
| Keyword: | Física, Orden multiferroso, Acoplamiento magnético, Polarización, Wien2K |
| Keyword: | Physics, Multiferroic order, Magnetic coupling, Polarization, Wien2K |
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