Positron lifetimes in ZnO single crystals

被引：24

作者：

Brauer, G.

Kuriplach, J.

Cizek, J.

Anwand, W.

Melikhova, O.

Prochazka, I.

Skorupa, W.

机构：

[1] Forschungszentrum Rossendorf EV, Inst Ionenstrahlphys & Materialforch, D-01314 Dresden, Germany

[2] Charles Univ Prague, Dept Low Temp Phys, CZ-18000 Prague, Czech Republic

来源：

VACUUM | 2007年 / 81卷 / 10期

关键词：

ZnO; positron lifetime; vacancy defects; hydrogen-defect interaction;

D O I：

10.1016/j.vacuum.2007.01.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Analysis of positron lifetime data for ZnO single crystals suggests that four well-separated lifetime levels exist between those for the bulk and the Zn vacancy. Due to the hydrothermal growth conditions of most ZnO single crystals studied so far, it is postulated that a hydrogen-defect interaction could be responsible for this finding. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1314 / 1317

页数：4