PAC identification of electric-nuclear-quadrupole interactions in Sm-sesquioxides

We present Perturbed Angular Correlation (PAC) results of the electric-nuclear quadrupole interaction at <SUP>181</SUP>Ta located at the nonequivalent cation sites of cubic C-Sm<SUB>2</SUB>O<SUB>3</SUB> and monoclinic B-Sm<SUB>2</SUB>O<SUB>3</...

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Detalles Bibliográficos
Autores principales:	Rentería, Mario, Errico, Leonardo Antonio, Bibiloni, Aníbal Guillermo, Freitag, K., Requejo, Félix Gregorio
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2000
Materias:	Ciencias Exactas Física 181Hf-Impurity Implantation Electric-Field Gradients Perturbed-Angular Correlations Rare-earth Semiconductor and Insulator Oxides Sm2O3
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/84292
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

Descripción
Sumario:	We present Perturbed Angular Correlation (PAC) results of the electric-nuclear quadrupole interaction at <SUP>181</SUP>Ta located at the nonequivalent cation sites of cubic C-Sm<SUB>2</SUB>O<SUB>3</SUB> and monoclinic B-Sm<SUB>2</SUB>O<SUB>3</SUB> free of defects. The application of the empirical Cd/Ta correlation found in binary oxides allowed us to correlate the interactions with each site and to identify the single Sm site populated in <SUP>111</SUP>In-implanted B-Sm<SUB>2</SUB>O<SUB>3</SUB> experiments. The preferential site occupation of Cd and Ta in B-Samaria is discussed in terms of the "chemistry" of the probe-atoms.