The optical absorption edge of barium titanate
G A Cox; G G Roberts; R H Tredgold; G A Cox; Physics Department, University College of North Wales, Bangor, Caernarvonshire; G G Roberts; Physics Department, University College of North Wales, Bangor, Caernarvonshire; R H Tredgold; Physics Department, University College of North Wales, Bangor, Caernarvonshire
Журнал:
British Journal of Applied Physics
Дата:
1966-06-01
Аннотация:
The optical absorption of single crystals of barium titanate has been measured in the region of the fundamental absorption edge. Results obtained on crystals after successive reductions in thickness allowed the true absorption coefficient to be calculated. Results confirm the direct transition at 3·05 eV and indicate a further transition at 2·63 eV which could be attributed to an indirect process.
189.4Кб