ESR OF COPPER-DOPED BETA-ALUMINA - LOCALIZATION OF CU2+ AND LINEWIDTH EFFECT

被引：14

作者：

GOURIER, D ^{[1
]}

VIVIEN, D ^{[1
]}

THERY, J ^{[1
]}

LIVAGE, J ^{[1
]}

COLLONGUES, R ^{[1
]}

机构：

[1] UNIV PARIS 06, SPECTROCHIM SOLIDE LAB, F-75230 PARIS 05, FRANCE

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1978年 / 45卷 / 02期

关键词：

D O I：

10.1002/pssa.2210450232

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

β‐alumina single crystals doped with Cu2+ ions and annealed are studied by EPR. In these crystals, Cu2+ ions occupy one site called A which is different from the B‐ and B'‐sites found immediately after chemical exchange, sites which were studied previously. g and hyperfine tensors are of rhombic symmetry and the ground state of Cu2+ is predominantly dx2 – y2. This A‐site is attributed to a mO position distorted by a relaxation of the first‐neighbour oxygen ions which are along the a‐direction in the conduction plane. This distortion leads to a distribution of the linewidth within the hyperfine multiplet which is analyzed in terms of a distribution of the g and hyperfine parameters. Copyright © 1978 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：599 / 606

页数：8

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