| Texto completo | |
| Autor(es): |
Shirai, M.
;
Freitas, R. S.
;
Lago, J.
;
Bramwell, S. T.
;
Ritter, C.
;
Zivkovic, I.
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW B; v. 96, n. 18, p. 5-pg., 2017-11-20. |
| Resumo | |
We present the results of the investigation of magnetic properties of the Er2Ti2-xSnxO7 series. For small doping values, the ordering temperature decreases linearly with x, while the moment configuration remains the same as in the x = 0 parent compound. Around x = 1.7 doping level, we observe a change in the behavior, where the ordering temperature starts to increase and new magnetic Bragg peaks appear. For the first time, we present evidence of a long-range order (LRO) in Er2Sn2O7 (x = 2.0) below T-N = 130 mK. It is revealed that the moment configuration corresponds to a Palmer-Chalker type with a value of the magnetic moment significantly renormalized compared to x = 0. We discuss our results in the framework of a possible quantum phase transition occurring close to x = 1.7. (AU) | |
| Processo FAPESP: | 15/16191-5 - Pesquisas em novos materiais envolvendo campos magnéticos intensos e baixas temperaturas |
| Beneficiário: | Gennady Gusev |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |