OH-RELATED DEFECTS IN LINBO3-MG,ND, LINBO3-MG,CR, LINBO3-MG,TI, LINBO3-MG,MN CRYSTALS

被引：45

作者：

KOVACS, L

SZALLER, Z

CRAVERO, I

FOLDVARI, I

ZALDO, C

机构：

[1] CSIC,INST CIENCIA MAT,E-28049 MADRID,SPAIN

[2] UNIV AUTONOMA MADRID,DEPT FIS APLICADA C-IV,E-28049 MADRID,SPAIN

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1990年 / 51卷 / 05期

基金：

匈牙利科学研究基金会;

关键词：

defect complex; doubly-doped LiNbO[!sub]3[!/sub; IR absorption; LiNbO[!sub]3[!/sub; OH vibration;

D O I：

10.1016/0022-3697(90)90176-G

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In addition to the 3539 cm-1 OH- stretching vibration related to Mg2+OH- complexes, OH- bands at 3522 and 3506 cm-1 were found in MgNd and MgCr doubly doped LiNbO3 crystals, respectively. These bands, polarized perpendicular to the c-axis, are interpreted as an OH- vibration in an M3+OH-Mg2+ association. In this complex the OH- ion is assumed to be located between the M3+ and Mg2+ ions which occupy Nb5+ and Li+ sites, respectively. In Mg2+Ti4+ and Mg2+Mn2+ codoped LiNbO3, no OH- band corresponding to that kind of complex was observed. The absorption strength of the OH- ions involved in the M3+OH-Mg2+ association is about 6 × 10-20cm2 ion-1. © 1990.

引用

页码：417 / 420

页数：4

共 24 条

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