Moya, XA Velásquez;
Fajardo, JC Rincón;
Barragán, SG Posada;
Peña, SJ Niño;
Crisolo, TN Quispe;
Sánchez, A Moreno;
Carreño, AN Morales;
... Roa-Rojas, J; + view all
(2025)
Crystalline, Magnetic and Optical Properties of the CaLaSnFeO6 Perovskite.
Journal of Superconductivity and Novel Magnetism
, 38
, Article 100. 10.1007/s10948-025-06902-1.
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Abstract
In order to obtain new materials with multifunctional properties, CaLaSnFeO6 samples were synthesized by the solid reaction technique. Structural analysis was performed by X-ray diffraction technique. Rietveld refinement of the experimental data revealed that these materials crystallize in a perovskite-type monoclinic structure (P21/n, space group #14) with alternating arrangement of Fe-Sn cations along the three crystallographic axes. The strongly granular character of the surface of the material was observed by scanning electron microscopy micrographs. X-ray energy dispersive spectra exhibited a close correspondence of the composition of the samples with that expected from their stoichiometric formula. Magnetic characterization in the temperature regime 50 K < T < 325 K and applied fields up to 30 kOe suggests the occurrence of a ferromagnetic ordering with Curie temperature TC = 204 K. Diffuse reflectance spectra revealed the semiconducting characteristic of the CaLaSnFeO6 double perovskite with a bandgap of Eg = 2.33 eV. To establish the origin of the magnetic interactions, electronic structure calculations were performed in the vicinity of the Fermi level by means of the Density Functional Theory. These properties generate technological expectations in the spintronics industry for the production of information storage devices on magnetic media based on polarized spin currents such as spin valves and magnetic transistors.
| Type: | Article |
|---|---|
| Title: | Crystalline, Magnetic and Optical Properties of the CaLaSnFeO6 Perovskite |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/s10948-025-06902-1 |
| Publisher version: | https://doi.org/10.1007/s10948-025-06902-1 |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
| Keywords: | Complex ordered perovskites, Crystal structure, Ferromagnetic semiconductor |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10205549 |
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