®®®® SIIA Público

Título del libro: 2014 International Conference On Multimedia Computing And Systems (icmcs)
Título del capítulo: Study on the structural and magnetic properties of Ru 1-x Mo x Sr 2 GdCu 2 O 8±z system

Autores UNAM:
ISMELI ALFONSO LOPEZ; JOSE GONZALO GONZALEZ REYES;
Autores externos:

Idioma:
Inglés
Año de publicación:
2014
Palabras clave:

Copper compounds; Gadolinium compounds; Magnetic materials; Magnetic susceptibility; Magnetism; Molybdenum; Molybdenum compounds; Organic superconducting materials; Ruthenium; Solid state reactions; Strontium compounds; Superconducting materials; X ray diffraction; Ambient pressures; DC magnetic susceptibility; Ferromagnetic orderings; Partial substitution; Space Groups; Structural and magnetic properties; Tetragonal structure; Type curves; Ruthenium compounds


Resumen:

The structural and magnetic properties of Ru 1-x Mo x Sr 2 GdCu 2 O 8 with 0.0 = x = 0.50 were investigated through Mo substitution in the Ru sites. Samples were synthesized by solid-state reaction at ambient pressure at temperature between 960 °C and 1060 °C. X-ray diffraction results indicate that the partial substitution of Ru by Mo within the studied level of doping takes place isostructurally in a tetragonal structure (space group P4/mmm) with a solubility up to x = 0.50. Rietlveld- refinement analysis indicates that the Cu-O(2) and Ru-O(3) bond lengths increase with Mo content, while the Cu-O(1) and Ru-O(1) bond lengths, as well as Cu-O(1)-Ru bond angles decrease with increasing x with a minimum at approximately x = 0.30, and then increase for x > 0.30 resulting in inverse bell-type curves. Results of the DC magnetic susceptibility measurements on samples indicate that all samples exhibit ferromagnetic ordering, with T Curie values depend on Mo content with a dependence that seems to be similar to Cu-O(1)-Ru bond angle. These results suggest a relationship between the structural and magnetic properties in the Ru 1-x Mo x Sr 2 GdCu 2 O 8 system. © 2014 IEEE.


Entidades citadas de la UNAM: