SPECTROSCOPIC STUDIES OF ND-3+-EXCHANGED BETA'' ALUMINA

被引：19

作者：

DUNN, B

YANG, DL

VIVIEN, D

机构：

[1] UNIV CALIF LOS ANGELES, DEPT MAT SCI & ENGN, LOS ANGELES, CA 90024 USA

[2] ECOLE NATL SUPER CHIM, CHIM APPL ETAT SOLIDE LAB, F-75231 PARIS 05, FRANCE

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1988年 / 73卷 / 01期

关键词：

ALUMINA - CRYSTALS - Spectroscopic Analysis - MAGNETIC RESONANCE - SPECTROSCOPY; ABSORPTION; -; Applications;

D O I：

10.1016/0022-4596(88)90074-6

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Optical absorption spectroscopy and electron spin resonance (ESR) techniques were used to study the site occupations for Nd**3** plus in beta double prime alumina. In partially exchanged compositions (3. 2 multiplied by 10**2**0 Nd/cm**3) the Nd**3** plus occupy midoxygen sites primarily. There is some population of the tetrahedral site; however, the concentration is too low to be clearly observed by ESR. Crystals which were completely exchanged (approx. 1. 8 multiplied by 10**2**1 Nd/cm**3) exhibited rather different behavior. The spectroscopy results for these materials indicate that there is a combination of both isolated Nd**3** plus ions and discrete pairs.

引用

页码：235 / 242

页数：8

共 12 条

[1]

ALFREY A, 1985, THESIS U CALIFORNIA

[2]

ALFREY AJ, UNPUB

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