Hyperfine fields at the Cd site in La0.67Cd0.25MnO3 CMR manganites

• Tipo: Artigo em Revista Científica Internacional
• Data: 2001

Autores

Araújo, João Pedro (Autor) Outra; Correia, J. G. (Autor) Outra; Amaral, V. S. (Autor) Outra; Tavares, Pedro B. (Autor) Outra; Lencart-Silva, F. (Autor) Outra; Lourenço, A. A C S (Autor) Outra; Sousa, João Bessa (Autor) FCUP; Vieira, Joaquim Manuel (Autor) Outra; Soares, José Carvalho Carvalho (Autor) Outra

Revista

Título: Hyperfine Interactions

Vol. 133

Páginas: 89-94

ISSN: 0304-3843

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 9 Citações

Scopus - 9 Citações

Outras Informações

ID Authenticus: P-000-X6C

DOI: 10.1023/a:1012209401402

Abstract (EN): Although Cd and Ca ions have the same valence and cation size, their incorporation into vacancy-doped La manganites induce different properties. While the incorporation of Ca leads to high Tc up to 250 K and induces a metallic-like behaviour, the incorporation of Cd severely reduces Tc and promotes insulator-like behaviour. In this work, the Cd hyperfine fields have been measured with the Perturbed Angular Correlations (PAC) technique after implantation and annealing of Cd-111m in La-Cd-MnO3 samples. The PAC results are compared with measurements of the resistivity and magnetization performed on the same samples. The mixed La and Mn site Cd occupancy is suggested as a possibility to explain the properties of the La-Cd-MnO3 system.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6