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Title
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Direct observation of electron self-trapping in crystals
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Author
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Abstract
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| Direct experimental evidence is reported for the self-trapping of electrons produced at 80 K by x-ray irradiation or by UV illumination above the band gap in pure, orthorhombic (D2h16) PbCl2 crystals. The ESR analysis demonstrates that the electron is trapped at a pair of nearest-neighbor substitutional Pb2+ ions along the a direction, resulting in a paramagnetic Pb-2(3+) molecular ion with electronic configuration complementary to that of the (halogen)2- self-trapped hole center in the alkali halides. The results of this paper suggest that the self-trapped exciton in PbCl2 consists of a hole trapped in an excited orbital around the Pb-2(3+) center. |
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Language
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English
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Source (journal)
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Physical review : B : condensed matter. - New York, N.Y., 1978 - 1997
Physical review : B : condensed matter and materials physics. - Lancaster, Pa, 1998 - 2015
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Publication
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New York, N.Y.
:
1993
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ISSN
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0163-1829
[print]
1095-3795
[online]
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DOI
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10.1103/PHYSREVB.48.9575
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Volume/pages
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48
:13
(1993)
, p. 9575-9580
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ISI
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A1993MC11600049
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Full text (Publisher's DOI)
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Full text (open access)
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