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Hyperfine interactions and dynamics characteristics of 119Sn in xSnO2-(1-x)a-Fe2O3 nanoparticle system

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: S. Constantinescu, L. Diamandescu, I. Bibicu, D. Tarabasanu-Mihaila, M. Feder,

Editorial: Hyperfine Interactions, 184, p.83-89 , 2008.

Rezumat:

The hyperfine interactions and dynamics aspects in nanoparticles sys- tem of the xSnO2-(1-x)α-Fe2O3 (x = 0.0–1.0) have been investigated by 119Sn- Mössbauer and XRD techniques. The change revealed by the XRD (XRDSs) and
Mössbauer spectra (MSs) vs. x was discussed in terms of the phase and lattice- dynamics changes. The evidences of the triple hyperfine magnetic fields’ distributions (MHFDs) and their dependencies x (<0.175) are discussed taking into account the super-transferred hyperfine interactions (STHI), the local disorder Sn4+/Fe3+ around the tin isotope probe and the reduced dimension effect.

Cuvinte cheie: 119Sn Mössbauer effect · xSnO2-(1-x) α-Fe2O3 nanoparticles · Super-transferred hyperfine interactions