Magnetic hyperfine field at Cr site in AgCrO2 given by Perturbed angular correlations

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2010

Autores

Oliveira, GNP (Autor) Outra; Lopes, AML (Autor) Outra; Mendonca, TM (Autor) Outra; Araujo, JP (Autor) FCUP; Agostinho Moreira, JA (Autor) FCUP; Almeida, A (Autor) FCUP; Amaral, VS (Autor) Outra; Correia, JG (Autor) Outra

Ata de Conferência Internacional

Título: HYPERFINE INTERACTIONS

Páginas: 123-128

3rd Joint International Conference on Hyperfine Interactions (HFI) / International Symposium on Nuclear Quadrupole Interactions (NQI)

Geneva, SWITZERLAND, SEP 12-17, 2010

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 4 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-007-XC4

DOI: 10.1007/s10751-010-0203-6

Abstract (EN): This work presents an electric field gradient and magnetic hyperfine field study, in the AgCrO2 multiferroic with triangular spin lattice. The temperature dependence of the electric field gradient (EFG) and magnetic hyperfine field (MHF) at Cr site was studied at ISOLDE via perturbed angular correlation measurements with the In-111 probe, at room temperature and below the Neel temperature (T <= 21 K) down to 12 K. The results show the presence of two distinct local environments. One axial symmetric EFG with a very low MHF, and a non axially symmetric EFG with a much higher one. The temperature dependences of MHF magnitude and of the angle between the MHF and the principle component of the EFG are investigated.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6