57Co Mossbauer emission study of LiNbO3, Fe:LiNbO3 and Mg:LiNbO3 in various thermochemical reduction states

被引：1

作者：

Becze-Deák, T

Bottyán, L

Corradi, G

Korecz, L

Nagy, DL

Polgár, K

Sayed, S

Spiering, H

机构：

[1] KFKI Res Inst Particle & Nucl Phys, H-1525 Budapest, Hungary

[2] Inst Solid State Phys & Opt, Crystal Phys Lab, H-1525 Budapest, Hungary

[3] Hungarian Acad Sci, Inst Chem, Chem Res Ctr, H-1525 Budapest, Hungary

[4] Al Azhar Univ, Cairo, Egypt

[5] Univ Mainz, Inst Anorgan Chem & Analyt Chem, D-55099 Mainz, Germany

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2000年 / 246卷 / 01期

关键词：

D O I：

10.1023/A:1006704324813

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Co-57 Mossbauer emission spectra of undoped and Fe or Mg melt-doped LiNbO3; single crystals show substantial amounts of the nucleogenic Fe3+ charge state (*Fe3+) which was generated as an after-effect of the electron-capture of Co-57(2+). The proportion of *Fe3+ is markedly dependent on the Mg content and on the stoichiometry of the sample. Electron trapping is described within the model of competing accepters. The capabilities of the model are investigated in defect structure analysis and charge trapping studies of LiNbO3.

引用

页码：33 / 37

页数：5

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