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- Title
Structure, Ferromagnetic, Dielectric and Electronic Features of the $$\hbox {LaBiFe}_{2}\hbox {O}_{6}$$ Material.
- Authors
Cuervo Farfán, J.; Aljure García, D.; Cardona, R.; Arbey Rodríguez, J.; Landínez Téllez, D.; Roa-Rojas, J.
- Abstract
In this paper, the synthesis and study of the structural, morphological, electrical, magnetic and electronic properties of the $$\hbox {LaBiFe}_{2}\hbox {O}_{6}$$ novel material are reported. The material was produced using the standard ceramic method. The Rietveld analysis of experimental data of X-ray diffraction showed that it synthesizes in an orthorhombic perovskite structure ( Pnma space group, # 62). Two types of grain, micro and sub-micrometric, with the $$\hbox {LaBiFe}_{2}\hbox {O}_{6}$$ stoichiometry were identified by scanning electron microscopy and X-ray dispersive spectroscopy. Results of electrical polarization and dielectric constant reveal the occurrence of hysteretic loops of polarization with evidences of dielectric loss. At room temperature, the material is ferromagnetic and exhibits an anomaly at T = 258 K, which is attributed to anisotropy effects. Results of diffuse reflectance suggest a semiconductor feature with energy gap $$E_{g}=2.17$$ eV, which is in agreement with calculations of band structure and density of states for one spin orientation, while for the other spin configuration from the calculations a conductor behavior is expected.
- Subjects
BISMUTH compounds; FERROMAGNETIC materials; ELECTRIC properties of metals; ELECTRONIC structure; MAGNETIC properties of metals; CERAMIC materials; X-ray diffraction
- Publication
Journal of Low Temperature Physics, 2017, Vol 186, Issue 5/6, p295
- ISSN
0022-2291
- Publication type
Article
- DOI
10.1007/s10909-016-1714-6