Structure of paramagnetic defects in BaTiO3and their light induced charge conversion

Autor: G. Godefroy, O. F. Schirmer, H. Kröse, E. Possenriede
Rok vydání: 1991
Předmět:
Zdroj: Radiation Effects and Defects in Solids. :681-686
ISSN: 1029-4953
1042-0150
DOI: 10.1080/10420159108220802
Popis: We report the ESR of Nd3+ in BaTiO3 and derive the electronic structure of its groundstate. – Among the light induced charge conversions found with ESR in nominally undoped BaTiO3 crystals hole photoionization of Fe4+ is the most important. The process is increased by oxidizing the crystals. Some of the holes are trapped as O− next to an unidentified acceptor. The trapping site of the remaining holes is ESR-silent.
Databáze: OpenAIRE