| Title |
|
|
|
Direct observation of electron self-trapping in crystals
|
|
| Author |
|
|
|
|
|
| Abstract |
|
|
|
| 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. | |
|
| Language |
|
|
|
English
|
|
| Source (journal) |
|
|
|
Physical review : B : condensed matter and materials physics. - Lancaster, Pa, 1998 - 2015 |
|
| Publication |
|
|
|
Lancaster, Pa : 1993
|
|
| ISSN |
|
|
|
1098-0121 [print]
1550-235X [online]
|
|
| Volume/pages |
|
|
|
48:13(1993), p. 9575-9580
|
|
| ISI |
|
|
|
A1993MC11600049
|
|
| Full text (Publishers DOI) |
|
|
| |
|
| Full text (open access) |
|
|
| |
|