Absorption Spectra and Low-Temperature Thermal Conductivity of Irradiated MgO Crystals with Impurity OH− Ions

Autor:	Z. G. Akhvlediani, V. G. Kvachadze, T. Kalabegishvili, M. G. Abramishvili
Rok vydání:	1993
Předmět:	Absorption spectroscopy Chemistry Analytical chemistry Atmospheric temperature range Condensed Matter Physics Magnetic susceptibility Electronic Optical and Magnetic Materials Ion law.invention Thermal conductivity law Impurity Vacancy defect Electron paramagnetic resonance Nuclear chemistry
Zdroj:	physica status solidi (b). 175:77-84
ISSN:	1521-3951 0370-1972
DOI:	10.1002/pssb.2221750105
Popis:	The influence of γ-irradiation on low-temperature thermal conductivity χ (T) and the spectra of optical and paramagnetic absorption of MgO crystals with OH− impurity ions is investigated. It is shown that irradiation leads to strong accumulation of hydrogen-containing centres and ions of Cr2+ and Fe2+ causing significant changes of χ (T) in crystals. The annealing experiments reveal that in the radiative change of χ (T) the contribution of hydrogen-containing hole centres is significant. [Russian Text Ignored].
Databáze:	OpenAIRE
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