Hyperfine interactions and irreversible magnetic behavior in multiferroic Aurivillius compounds
Artykuł w czasopiśmie
MNiSW
15
Lista A
| Status: | |
| Autorzy: | Jartych Elżbieta, Gąska Karolina, Przewoźnik Janusz, Kapusta Czesław, Lisińska-Czekaj Agata, Czekaj Dionizy, Surowiec Zbigniew |
| Rok wydania: | 2013 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 1 |
| Wolumen/Tom: | 58 |
| Strony: | 47 - 51 |
| Impact Factor: | 0,357 |
| Web of Science® Times Cited: | 11 |
| Bazy: | Web of Science | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Otwarte czasopismo |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Abstrakty: | angielski |
| In this work investigations of structure and magnetic properties of conventionally sintered Bim+1Ti3Fem-3O3m+3 compounds with 4 <= m <= 8 were performed using X-ray diffraction, Mossbauer spectroscopy and vibrating sample magnetometry. Room-temperature Mossbauer spectra of the compounds correspond to a paramagnetic state, however, low temperature measurements (80 K) reveal the antiferromagnetic state with a residual paramagnetic phase. Temperature dependencies of magnetic susceptibility, chi(sigma)(T), provided magnetic ordering temperatures and revealed an irreversibility in Aurivillius compounds with m >= 5. In the case of Bi5Ti3FeO15 compound the chi(sigma)(T) dependence shows a paramagnetic behavior down to 2 K. The Bi6Ti3Fe2O18 compound reveals a magnetic ordering at 11 K. The compounds with m = 6-8 show a magnetic ordering at temperatures higher than 200 K. Highly irreversible character of their temperature dependencies of chi(sigma) indicates a spin-glass type disordered magnetism with frustration due to a random distribution of Fe on Ti at their sites. |
