Photoinduced linear dichroism in sillenite crystals and in diamond

Autor(en): Reyher, HJ
Ruschke, J
Mersch, F
Stichwörter: BI12SIO20; Bi12TiO20; center alignment; diamond; Nuclear Science & Technology; optical linear dichroism; Physics; Physics, Condensed Matter; Physics, Fluids & Plasmas
Erscheinungsdatum: 1995
Herausgeber: TAYLOR & FRANCIS LTD
Journal: RADIATION EFFECTS AND DEFECTS IN SOLIDS
Volumen: 136
Ausgabe: 1-4
Startseite: 129
Seitenende: 132
Zusammenfassung: 
By illumination with linearly polarized light, a strong optical linear dichroism (LD) can be created in undoped sillenites of the type Bi12TiO20(BTO). This photoinduced LD is stable in the dark at T < 77 K and is reversible by changing the direction of the polarization appropriately. The spectra of the LD and of the magnetic circular dichroism (MCD) of the Bi-Ti(4+) antisite reveal some similarities; however, there is no direct evidence for attributing the LD to Bi-Ti(4+). The observation of the LD as a function of the direction of the polarization is shown to give information on the symmetry of the center causing the LD. Comparative studies of nitrogen containing diamond support this fact.
Beschreibung: 
7th Europhysical Conference on Defects in Insulating Materials (Eurodim 94), ECOLE NORMALE SUPIRIEURE LYON, LYON, FRANCE, JUL 05-08, 1994
ISSN: 10420150
DOI: 10.1080/10420159508218807

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