INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Short range investigation on A2Zr2O7 with A = Gd and Y synthesized by solid state reaction
M. C. CARACOCHE; J. A. MARTÍNEZ; P. C. RIVAS
Rio de Janeiro, Brasil
Conferencia; International Conference of Advanced Materials; 2009
Ionic conductivity has become a motivating field of technology since SOFCs were developed. A2B2O7 pyrochlore structures are interesting atomic arrays having a structural hole that can facilitate conductivity by the jump of oxygen anions. On the other side, the Perturbed Angular Correlations (PAC) technique is one of the few techniques that can characterize atomic movements by measuring fluctuating electric field gradients due to charge movements within the order of nanoseconds. A PAC investigation on Y2Zr2O7 and Gd2Zr2O7 pyrochlores has been performed as a function of temperature. Results are compared together with those of Pr2Zr2O7.