This article is cited in 14 papers

Low dimensional systems

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

V. G. Ilves^ab, M. G. Zuev^bc, S. Yu. Sokovnin^ab, A. M. Murzakaev<sup>ab

a</sup> Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Ekaterinburg
^b Ural Federal University named after the First President of Russia B. N. Yeltsin, Ekaterinburg
^c Institute of Solid State Chemistry, Urals Branch of the Russian Academy of Sciences, Ekaterinburg

Abstract: An amorphous SiO$_2$ 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 SiO$_2$ 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 SiO$_2$ nanopowder formed upon electron beam evaporation have been discussed. The photoluminescence and cathodoluminescence properties of the SiO$_2$ nanopowder have been investigated.

Received: 05.02.2015
Accepted: 09.06.2015

 English version: Physics of the Solid State, 2015, 57:12, 2512–2518

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