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

被引：5
|
作者：
MACALIK, B [1 ]
BAUSA, LE [1 ]
SOLE, JG [1 ]
JAQUE, F [1 ]
机构：
[1] POLISH ACAD SCI,INST LOW TEMP & STRUCT RES,PL-50950 WROCLAW,POLAND
来源：
APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 16期
关键词：
D O I：
10.1063/1.109532
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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 ([Li]/[Nb] ratio). It has been also concluded that the defects associated to the nonstoichiometry (antisites and Nb vacancies) of the crystal host are responsible for the incorporation of Cr3+ ions into the LiNbO3 matrix.
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页码：1887 / 1888
页数：2
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