| Texto completo | |
| Autor(es): |
Freitas, R. S.
;
Gardner, J. S.
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF PHYSICS-CONDENSED MATTER; v. 23, n. 16, p. 4-pg., 2011-04-27. |
| Resumo | |
Measurements of the magnetic susceptibility of the frustrated pyrochlore magnet Gd2Sn2O7 have been performed at temperatures below T = 5 K and in magnetic fields up to H = 12 T. The phase boundaries determined from these measurements are mapped out in an H-T phase diagram. In this gadolinium compound, where the crystal-field splitting is small and the exchange and dipolar energy are comparable, the Zeeman energy overcomes these competing energies, resulting in at least four magnetic phase transitions below 1 K. These data are compared against those for Gd2Ti2O7 and will, we hope, stimulate further studies. (AU) | |
| Processo FAPESP: | 08/00457-2 - Estudo de novos materiais magneticos: manganitas e frustracao geometrica. |
| Beneficiário: | Rafael Sá de Freitas |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |