Investigations of Defect Centres in Alkali Halides Doped with Trivalent Cations. Part 1: Bismuth in NaCl, KCl and RbCl Crystals

• Authors: M. Suszyńska , R. Capelletti
• Languages of publication: EN

Abstracts

EN

A correlated set of experiments was performed with a view to study the effect of trivalent bismuth upon some properties of NaCl, KCI and RbCI crystals. For NaCI the effect of BiO^{+} ions was also investigated. It was stated that: 1. The hydrolytic properties of bismuth are responsible for the formation of BiO^{+} centres also in crystals doped with BP^{3+} ions. 2. During all experiments performed, the dopant remains in the form of trivalent cations. 3. Optical absorption spectra of bismuth are similar to those characteristic of other heavy metal ions with the s^{2} electronic configuration. 4. The charge excess of BP^{3+} ions is compensated by cation vacancies whereas for BiO^{+} ions the preferential bonding between Bi^{3+} and O^{2-} serves for the charge compensation.

Keywords

EN

77.40.+i

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1993
• Volume: 83
• Issue: 1
• Pages: 25-38

Dates

published

1993-01

received

1992-07-09

Contributors

author

M. Suszyńska

• W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Pl. Katedralny 1, 50-950 Wrocław, Poland

author

R. Capelletti

• Physics Department, Parma University, 43100 Parma, Italy

Identifiers

DOI

10.12693/APhysPolA.83.25