SEGREGATION OF CE IMPURITIES IN KMGF3 SINGLE-CRYSTALS

Authors
SCACCO A BUZANOV O DELENA M SANIPOLI C
Citation
A. Scacco et al., SEGREGATION OF CE IMPURITIES IN KMGF3 SINGLE-CRYSTALS, Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics, 20(7-8), 1998, pp. 893-898
Citations number
13
Categorie Soggetti
Physics
Journal title
Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics → ACNP
ISSN journal
03926737
Volume
20
Issue
7-8
Year of publication
1998
Pages
893 - 898
Database
ISI
SICI code
0392-6737(1998)20:7-8<893:SOCIIK>2.0.ZU;2-9
Abstract
In view of the successful use of perovskite-like compounds in technolo gical applications, a study on the segregation of the dopant in the gr owth from the melt of single crystals of KMgF3:Ce3+ is carried out wit h particular concern to the influence of impurity concentration and pu lling rate. The effective segregation coefficient of Ce3+ in KMgF3 is found to have the approximately constant value of 0.22 for solidified fractions lower than 25% and to considerably increase in the rest of t he growth process because of matrix evaporation.