Properties of an amorphous silicon dioxide nanopowder prepared by pulsed electron beam evaporation

被引：14
|
作者：
Il'ves, V. G. [1 ,2 ]
Zuev, M. G. [2 ,3 ]
Sokovnin, S. Yu. [1 ,2 ]
Murzakaev, A. M. [1 ,2 ]
机构：
[1] Russian Acad Sci, Ural Branch, Inst Electrophys, Ekaterinburg 620016, Russia
[2] Ural Fed Univ, Ekaterinburg 620002, Russia
[3] Russian Acad Sci, Ural Branch, Inst Solid State Chem, Ekaterinburg 620990, Russia
来源：
PHYSICS OF THE SOLID STATE | 2015年 / 57卷 / 12期
基金：
俄罗斯基础研究基金会;
关键词：
MAGNETIC-PROPERTIES; PHOTOLUMINESCENCE; LUMINESCENCE; NANOWIRES; NANOCLUSTERS; DEPENDENCE;
D O I：
10.1134/S1063783415120161
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
An amorphous SiO2 nanopowder with a specific surface area of 154 m(2)/g has been prepared using pulsed electron beam evaporation of a target from a pyrogenic amorphous Aerosil 90 nanopowder (90 m(2)/g). It has been found that SiO2 nanoparticles exhibit improved magnetic, thermal, and optical properties as compared to the properties of particles of the Aerosil 90 nanopowder. Possible factors responsible for the appearance of ferromagnetism at room temperature in the amorphous SiO2 nanopowder formed upon electron beam evaporation have been discussed. The photoluminescence and cathodoluminescence properties of the SiO2 nanopowder have been investigated.
引用
收藏
页码：2512 / 2518
页数：7
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