ELECTRIC FIELD GRADIENTS IN SEMICONDUCTORS AND INSULATORS: EMPIRICAL CORRELATION FOUND IN BINARY OXIDES

Autor:	A. G. Bibiloni, Mario Rentería, C. P. Massolo
Rok vydání:	1992
Předmět:	Coupling constant Physics Condensed matter physics business.industry Binary number Ionic bonding Statistical and Nonlinear Physics Condensed Matter Physics Semiconductor Electric field Lattice (order) Quadrupole business Electric field gradient
Zdroj:	Modern Physics Letters B. :1819-1825
ISSN:	1793-6640 0217-9849
DOI:	10.1142/s0217984992001514
Popis:	For the first time a well defined correlation between local and lattice contributions of the electric field gradient in semiconductors and insulators is presented. The local component of the electric field gradient in binary oxides, originated in extraionic contributions, is extracted from all quadrupole coupling constants measured in Perturbed Angular Correlation experiments with 111Cd probes. The resulting systematics reveals a linear dependence of the local component over a wide range of ionic efg values, both contributing with opposite signs. The clustering of the data points is explained in terms of the oxygen near neighbor symmetry.
Databáze:	OpenAIRE
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