EELS analysis of cation valence states and oxygen vacancies in magnetic oxides
EELS analysis of cation valence states and oxygen vacancies in magnetic oxides
复制标题
DOI：
10.1016/s0968-4328(99)00139-0
复制
发表时间：
2000-10-01
期刊：
影响因子：
2.4
通讯作者：
Jiang, YD
中科院分区：
文献类型：
--
作者：
Wang, ZL;Yin, JS;Jiang, YD
过渡金属氧化物是一类对开发具有功能性和智能性的新材料至关重要的材料。这些材料的独特性质与过渡元素的混合价态元素的存在有关。透射电子显微镜中的电子能量损失谱（EELS）是测定某些过渡金属元素价态的有效方法。本文报道了我们应用EELS定量测定磁性氧化物中Mn和Co价态的最新进展，包括价态转变、氧空位定量、晶体结构细化、和纳米颗粒结构的鉴定。(C)2000爱思唯尔科技有限公司版权所有。
Transition metal oxides are a class of materials that are vitally important for developing new materials with functionality and smartness. The unique properties of these materials are related to the presence of elements with mixed valences of transition elements. Electron energy-loss spectroscopy (EELS) in the transmission electron microscope is a powerful technique for measuring the valences of some transition metal elements of practical importance, This paper reports our current progress in applying EELS for quantitative determination of Mn and Co valences in magnetic oxides, including valence state transition, quantification of oxygen vacancies, refinement of crystal structures, and identification of the structure of nanoparticles. (C) 2000 Elsevier Science Ltd. All rights reserved.