PARAMAGNETIC DEFECTS IN BATIO3 AND THEIR ROLE IN LIGHT-INDUCED CHARGE TRANSPORT .1. ESR STUDIES

被引:113
作者
POSSENRIEDE, E
JACOBS, P
SCHIRMER, OF
机构
[1] Fachbereich Phys., Osnabruck Univ.
关键词
D O I
10.1088/0953-8984/4/19/013
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
An overview on paramagnetic defects in BaTiO3 single crystals, used in photorefractive applications, is given. New results concerning cation defects include the investigation of double quantum transitions in isolated Fe3+, identification of the parameters of Fe4+-V0, analysis of Co2+, the report of Co4+-V0, Jahn-Teller-induced spin-lattice relaxation effects of Pt3+, identification of Rh2+, Rh4+, Ir4+ and Pt5+. In the field of anion defects O- trapped hole centres associated with unknown acceptors and with Al3+ are reported. The role of the identified defects in light-induced charge transport processes is discussed.
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页码:4719 / 4742
页数:24
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