Quantitative determination of Eu2+ and Eu3+ content in (Eu,Y)-Si-Al-O-N glasses by magnetic measurements

被引：13

作者：

de Graaf, D

Hintzen, HT

de With, G

Ramanujachary, KV

Lanci, C

Lofland, SE

机构：

[1] Eindhoven Univ Technol, Lab Solid State & Mat Chem, NL-5600 MB Eindhoven, Netherlands

[2] Rowan Univ, Dept Phys & Astron, Glassboro, NJ 08028 USA

[3] Rowan Univ, Dept Chem & Biochem, Glassboro, NJ 08028 USA

来源：

SOLID STATE COMMUNICATIONS | 2004年 / 131卷 / 11期

关键词：

disordered systems; oxynitride; europium; valence; magnetic susceptibility;

D O I：

10.1016/j.ssc.2004.06.030

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

This paper describes a method to determine the oxidation state of europium by means of magnetic measurements. The feasibility of this method is demonstrated using Eu-doped Y-Si-Al-O-N glasses as a model system. Magnetic measurements at (Eu,Y)-Si-Al-O-N glasses show that Eu is completely present as divalent ion for low Eu concentrations (Eu0.152Y15.0Si14.7Al8.7O54.1N7.4). At high Eu concentrations (Eu(15.2)Si(14.7)A(18.7)O(54.1)N(7.4)) a maximum of 5 at.% could be present as Eu3+. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：693 / 696

页数：4

共 6 条

[1]

Blasse G., 1994, LUMINESCENT MAT, DOI [10.1007/978-3-642-79017-1_1, DOI 10.1007/978-3-642-79017-1_1]

[2] Long wavelength Eu2+ emission in Eu-doped Y-Si-Al-O-N glasses [J].