INVESTIGADORES
RENTERIA Mario
artículos
Título:
Interacciones Hiperfinas en Impurezas 111Cd en Sesquióxidos con Estructura Bixbita: el Caso del Oxido de Lutecio.
Autor/es:
L.A. ERRICO; M. RENTERÍA; A.G. BIBILONI; F.G. REQUEJO
Revista:
Anales AFA
Editorial:
Asociación Física Argentina
Referencias:
Lugar: Tandil; Año: 1998 vol. 9 p. 207 - 210
ISSN:
0327-358X
Resumen:
We
report here the electric-field-gradient (EFG) hyperfine characterization at 111Cd
impurities located at both inequivalent
cation sites of the bixbyite structure
of Lutetium sesquioxide, in the
temperature range RT-1273 K. The results are compared with those coming from the systematic TDPAC
study in bixbyites and with predictions performed within the point-charge
model. The anomalous EFG temperature dependence observed in
Lu2O3 is explained in the frame of a ?two-states? model with fluctuating interactions,
which enables the determination of the aceptor energy level introduced by Cd
ions in the semiconductor matrix.
