INFLUENCE OF THE STOICHIOMETRY IN THE SITE DISTRIBUTION OF CR-3+ IONSIN LINBO3

Authors
MACALIK B BAUSA LE SOLE JG JAQUE F
Citation
B. Macalik et al., INFLUENCE OF THE STOICHIOMETRY IN THE SITE DISTRIBUTION OF CR-3+ IONSIN LINBO3, Applied physics letters, 62(16), 1993, pp. 1887-1888
Citations number
20
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
62
Issue
16
Year of publication
1993
Pages
1887 - 1888
Database
ISI
SICI code
0003-6951(1993)62:16<1887:IOTSIT>2.0.ZU;2-K
Abstract
In this letter the influence of the stoichiometry ([Li]/[Nb] ratio) on the R absorption lines of Cr3+ in LiNbO3 has been investigated. It is shown that Cr3+ ions occupy the Li+ and Nb5+ lattice sites but their relative distribution is modified by changing the melt composition ([L i]/[Nb] ratio). It has been also concluded that the defects associated to the nonstoichiometry (antisites and Nb vacancies) of the crystal h ost are responsible for the incorporation of Cr3+ ions into the LiNbO3 matrix.