Structural analysis of Fe-Mn-O nanoparticles in glass ceramics by small angle scattering

Vikram Singh Raghuwanshi, Ruzha Harizanova, Dragomir Tatchev, Armin Hoell, Christian Rüssel

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Magnetic nanocrystals containing Fe and Mn were obtained by annealing of silicate glasses with the composition 13.6Na2O-62.9SiO2-8.5MnO-15.0Fe2O3-x (mol%) at 580 °C for different periods of time. Here, we present Small Angle Neutron Scattering using Polarized neutrons (SANSPOL) and Anomalous Small Angle X-ray Scattering (ASAXS) investigation on these glass ceramic samples. Analysis of scattering data from both methods reveals the formation of spherical core-shell type of nanoparticles with mean sizes between 10 nm and 100 nm. ASAXS investigation shows the particles have higher concentration of iron atoms and the shell like region surrounding the particles is enriched in SiO2. SANSPOL investigation shows the particles are found to be magnetic and are surrounded by a non-magnetic shell-like region.

Original languageEnglish
Pages (from-to)103-110
Number of pages8
JournalJournal of Solid State Chemistry
Volume222
DOIs
Publication statusPublished - 2015
Externally publishedYes

Keywords

  • ASAXS
  • Glass ceramics
  • Magnetic nanoparticles
  • SANSPOL

Cite this

Raghuwanshi, Vikram Singh ; Harizanova, Ruzha ; Tatchev, Dragomir ; Hoell, Armin ; Rüssel, Christian. / Structural analysis of Fe-Mn-O nanoparticles in glass ceramics by small angle scattering. In: Journal of Solid State Chemistry. 2015 ; Vol. 222. pp. 103-110.
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abstract = "Magnetic nanocrystals containing Fe and Mn were obtained by annealing of silicate glasses with the composition 13.6Na2O-62.9SiO2-8.5MnO-15.0Fe2O3-x (mol{\%}) at 580 °C for different periods of time. Here, we present Small Angle Neutron Scattering using Polarized neutrons (SANSPOL) and Anomalous Small Angle X-ray Scattering (ASAXS) investigation on these glass ceramic samples. Analysis of scattering data from both methods reveals the formation of spherical core-shell type of nanoparticles with mean sizes between 10 nm and 100 nm. ASAXS investigation shows the particles have higher concentration of iron atoms and the shell like region surrounding the particles is enriched in SiO2. SANSPOL investigation shows the particles are found to be magnetic and are surrounded by a non-magnetic shell-like region.",
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Structural analysis of Fe-Mn-O nanoparticles in glass ceramics by small angle scattering. / Raghuwanshi, Vikram Singh; Harizanova, Ruzha; Tatchev, Dragomir; Hoell, Armin; Rüssel, Christian.

In: Journal of Solid State Chemistry, Vol. 222, 2015, p. 103-110.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Raghuwanshi, Vikram Singh

AU - Harizanova, Ruzha

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