| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1498572 | Scripta Materialia | 2014 | 4 Pages |
Abstract
Nanostructured orthorhombic TbMnO3 polycrystals were synthesized by high-energy ball milling and annealing in Ar or O2 atmospheres. Oxygen annealed samples show shrunken unit cells in comparison with Ar annealed ones, without Mn valence changes in both cases. Magnetic and dielectric investigations show strong evidence of long-range (43 K) and quasi-long-range (9 K) ordering for Mn and Tb ions, respectively, and a noncollinear spin-spiral magnetic ordering of Mn spins, with higher magnetic response and ferroelectric state for argon synthesized samples.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Gustavo S. Dias, Luiz Gustavo D. Silveira, Luiz F. Cótica, Ivair A. Santos, Adelino A. Coelho, Ducinei Garcia, José A. Eiras, Juraci A. Sampaio,