INVESTIGATIONS OF CHARGE STATES IN CO57-DOPED OXIDES USING MOSSBAUER-EFFECT AND DELAYED-COINCIDENCE TECHNIQUES

被引:27
作者
TRIFTSHAUSER, W
SCHROEER, D
机构
[1] Physik Department, Technische Hochschule München, Munich
[2] Department of Physics, University of North Carolina, Chapel Hill
[3] Department of Physics, Queen's University, Kingston, Ont.
来源
PHYSICAL REVIEW | 1969年 / 187卷 / 02期
关键词
D O I
10.1103/PhysRev.187.491
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The time dependence of Fe57 chemical charge states in sources of Cu2O, MgO, and Al2O3 doped with Co57 has been studied by means of the Mössbauer effect. Charge states of Fe1+, Fe2+, Fe3+, and Fe4+ resulting from the K-capture decay of the Co57 have been detected. Delayed-coincidence measurements showed no time dependence of the relative peak intensities of these charge states. A time-dependent narrowing of the resonance lines is observed which is not ascribable to time filtering" alone. The isomer shifts of the different valence states are discussed in terms of 3d-electron shielding. © 1969 The American Physical Society."
引用
收藏
页码:491 / +
页数:1
相关论文
共 38 条