Cadmium addition to vacancy doped lanthanum manganites: from metallic to insulator behaviour

• Type: Article in International Scientific Journal
• Date: 2001

Authors

Araújo, João Pedro (Author) Other; Amaral, V. S. (Author) Other; Tavares, Pedro B. (Author) Other; Lencart-Silva, F. (Author) Other; Lourenço, A. A C S (Author) Other; Alves, Eduardo J. (Author) Other; Sousa, João Bessa (Author) FCUP; Vieira, Joaquim Manuel (Author) Other

Journal

Title: Journal of Magnetism and Magnetic Materials

Vol. 226

Pages: 797-799

ISSN: 0304-8853

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 8 Citations

Scopus - 8 Citations

Other information

Authenticus ID: P-000-VPE

DOI: 10.1016/s0304-8853(00)01399-8

Abstract (EN): A study of transport and magnetic properties of Cd manganites in bulk ceramic and thin films is presented. Although Cd and Ca ions have the same valence and similar cti ion sizes, their incorporation into vacancy doped La manganites induces different properties. Both series are ferromagnetic with the usual peak in magneto resistance close to T-c, but Cd reduces Tc severely (from 250 K down to 148 K, for 25% Cd) and promotes insulator-like behaviour. Similar effects are found in thin films and substrate induced strain effects (LaAlO3 and SrTiO3) are evidenced on the electrical properties.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 3