Defects in the reduced rutile single crystal

被引：34

作者：

Lu, TC ^{[1
]}

Wu, SY

Lin, LB

Zheng, WC

机构：

[1] Sichuan Univ, Dept Phys, Radiat Phys & Radiat Technol Lab, Chengdu 610064, Peoples R China

[2] Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China

[3] Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China

来源：

PHYSICA B | 2001年 / 304卷 / 1-4期

基金：

中国国家自然科学基金;

关键词：

defects; crystal- and ligand-field theory; local geometry; rutile crystal;

D O I：

10.1016/S0921-4526(01)00337-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this paper, the UV-VIS optical absorption spectra of oxidized and reduced rutile single crystals are measured by means of spectrophotometer and two absorption peaks around 430 and 730nm are found. These spectral data are analyzed by using the crystal field theory. Based on these studies, we suggest that the reduced crystal contain the defect center [Ti3+-O-v], with the oxygen vacancy (O-v) on one of the nearest neighbor sites of the central Ti3+ ion. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：147 / 151

页数：5

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