Magnetic and structural properties of yellow europium oxide compound and Eu(OH)3

被引：13

作者：

Lee, Dongwook ^{[1
]}

Seo, Jiwon ^{[2
,3
]}

Valladares, Luis de los Santos ^{[1
]}

Quispe, O. Avalos ^{[4
]}

Barnes, Crispin H. W. ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[2] Yonsei Univ, Dept Phys, Seoul 120749, South Korea

[3] Yonsei Univ, IPAP, Seoul 120749, South Korea

[4] Univ Nacl Mayor San Marcos, Fac Ciencias Fis, Lab Ceram & Nanomat, Lima 14, Peru

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2015年 / 228卷

基金：

新加坡国家研究基金会;

关键词：

Yellow europium oxide; Disordered magnetism; Eu(OH)(3); ANISOTROPIC EXCHANGE; THIN-FILMS; CRYSTAL; EUO; FIELD;

D O I：

10.1016/j.jssc.2015.04.018

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new material based on a yellow europium oxide compound was prepared from europium oxide in a high vacuum environment. The structural and magnetic properties of the material were investigated. Owing to the absence of a crystal structure, the material exhibited a disordered magnetic behavior. In a reaction with deionized (DI) water without applied heat, the compound assumed a white color as soon as the DI water reached the powder, and the structure became polycrystalline Eu(OH)(3). The magnetic properties, such as the thermal hysteresis, disappeared after the reaction with DI water, and the magnetic susceptibility of the yellow oxide compound weakened. The magnetic properties of Eu(OH)(3) were also examined. Although Eu3+ is present in Eu(OH)(3), a high magnetic moment due to the crystal field effect was observed. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：141 / 145

页数：5

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