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

• Type: Article in International Conference Proceedings Book
• Date: 2010

Authors

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

Conference proceedings International

Title: HYPERFINE INTERACTIONS

Pages: 123-128

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

Geneva, SWITZERLAND, SEP 12-17, 2010

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 4 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6