The study of positron annihilation lifetime spectra in α-LiIO<sub>3</sub> single crystal under an electrostatic field

Maorong Huang; Dingzhen Yin

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The study of positron annihilation lifetime spectra in α-LiIO₃ single crystal under an electrostatic field

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- The study of positron annihilation lifetime spectra in α-LiIO₃ single crystal under an electrostatic field
- Nuclear Techniques Vol. 05, Issue 6, (1982)
- 作者机构：
  
  中国科学院高能物理研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1982-12
- 稿件说明：
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Maorong Huang, Dingzhen Yin. The study of positron annihilation lifetime spectra in α-LiIO₃ single crystal under an electrostatic field[J]. Nuclear techniques, 1982, 05(6): 68-70.
DOI：

Maorong Huang, Dingzhen Yin. The study of positron annihilation lifetime spectra in α-LiIO₃ single crystal under an electrostatic field[J]. Nuclear techniques, 1982, 05(6): 68-70. DOI：

摘要

在静电场下，

-LiIO

单晶

[1]

一系列异常的物理特性引起科学工作者很大的兴趣，根据质谱分析，该单晶含有多种阳离子杂质。由顺磁共振研究证明：在

-LiIO

单晶中，Fe

能取代格位Li

。从离子半径和

-LiIO

结构判断，一些高价阳离子杂质也可能取代格位Li

。因而就必然伴生大量的空位。本文用正电子湮灭寿命谱，研究在静电场下α-LiIO

单晶中，正电子湮灭机制及阳离子空位浓度的变化。

Abstract

The annihilation mechanism and the change of vacancy concentration in α-LiIO

single crystal under the action of an electrostatic field were investigated by positron annihilation lifetime spectra. The positron annihilation mechanism in α-LiIO

was interpreted in terms of a trapping model in which the escape rate can not be neglected. A complicate relation between the average lifetime and the field strength was observed.

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Keywords

references

中国科学院物理研究所LiIO 3 晶体研究组，物理， 1 ， 28 （ 1972 ）.

朱镛等，物理学报， 26 ， 2 , 115 （ 1977 ）.

Charles S. Tumosa et al ., J . Phys. Chem. , 75 , 13 , 2030 （ 1971 ）.

许政一等，物理， 8 ， 1 ， 9 （ 1979 ）.

古元新等，物理学报， 29 ， 6 , 711 （ 1980 ）.

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The study of positron annihilation lifetime spectra in α-LiIO3 single crystal under an electrostatic field

DOI：

摘要

Abstract

关键词

Keywords

references

The study of positron annihilation lifetime spectra in α-LiIO₃ single crystal under an electrostatic field