Study on the structural and magnetic properties of the Ru1-xMoxSr2GdCu2O8 +/- z system
Por:
Abatal, Mohamed, Garcia-Vazquez, Valentin, Oubram, Outmane, Conde Gallardo, Agustin, Gonzalez-Parada, Adrian, Alfonso, Ismeli, Gonzalez, Gonzalo
Publicada:
1 ene 2014
Resumen:
The structural and magnetic properties of Ru1-xMoxSr2GdCu2O8 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 degrees C and 1060 degrees 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 -p: urie 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 Ru1-xMoxSr2GdCu2O8 system.
Filiaciones:
Abatal, Mohamed:
Univ Autonoma Carmen, Fac Ingn, Ciudad Del Carmen, Campeche, Mexico
Garcia-Vazquez, Valentin:
BUAP, Inst Fis LRT, Puebla, Pue, Mexico
Oubram, Outmane:
Univ Autonoma Estado Morelos, Fac Ciencias Quim & Ingn, Cuernavaca, Morelos, Mexico
Conde Gallardo, Agustin:
CINVESTAV, Dept Fis, Mexico City 07360, DF, Mexico
Gonzalez-Parada, Adrian:
Univ Guanajuato, Dept Ingn Elect, Salamanca, Guanajuato, Mexico
Alfonso, Ismeli:
Univ Nacl Autonoma Mexico, Inst Invest Mat, Mexico City 04510, DF, Mexico
Gonzalez, Gonzalo:
Univ Nacl Autonoma Mexico, Inst Invest Mat, Mexico City 04510, DF, Mexico
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