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

Abramishvili M. G. | Zendy; Akhvlediani Z. G. | Zendy; Kalabegishvili T. L. | Zendy; Kvachadze V. G. | Zendy

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

Author(s) -

Abramishvili M. G.,

Akhvlediani Z. G.,

Kalabegishvili T. L.,

Kvachadze V. G.

Publication year - 1993

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221750105

Subject(s) - impurity , ion , irradiation , annealing (glass) , analytical chemistry (journal) , hydrogen , materials science , absorption spectroscopy , conductivity , absorption (acoustics) , spectral line , thermal conductivity , chemistry , optics , physics , organic chemistry , chromatography , astronomy , nuclear physics , composite material

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 Cr 2+ and Fe 2+ 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.

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