Title
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Paramagnetic lead centers in electrolytically colored kcl-pb crystals
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Author
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Abstract
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Monomer and dimer paramagnetic lead centres have been identified for the first time by electron paramagnetic resonance (EPR) in electrolytically coloured low-purity KCl:Pb crystals. The monomer Pb-(Rh) centre, with orthorhombic symmetry and local axes [1(1) over bar0$], [001] and [110], decays completely in darkness and is produced by illumination with visible light. It seems to be related to, but is different from, the so-called Te centres identified in the same samples by their optical and magneto-optical spectra, as well as to the monomer Pb- centres earlier observed by EPR in high-purity KCl:Pb crystals x-ray irradiated at room temperature. The Tr1 and Tr2 trapped electron lead-dimer centres, with axial symmetry around [111], seem to be related to the Td centres identified by magneto-optical measurements. |
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Language
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English
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Source (journal)
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Journal of physics : condensed matter. - London
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Publication
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London
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1995
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ISSN
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0953-8984
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DOI
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10.1088/0953-8984/7/21/011
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Volume/pages
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7
:21
, p. 4115-4128
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ISI
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A1995RA00600011
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Full text (Publisher's DOI)
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