Magnetic domain configurations of pulsed laser deposited MnBi hard magnetic films
| dc.contributor.author | Madurga Pérez, Vicente | |
| dc.contributor.author | Favieres Ruiz, Cristina | |
| dc.contributor.author | Vergara Platero, José | |
| dc.contributor.department | Institute for Advanced Materials and Mathematics - INAMAT2 | en |
| dc.contributor.funder | Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa | es |
| dc.date.accessioned | 2023-01-18T08:24:24Z | |
| dc.date.available | 2023-01-18T08:24:24Z | |
| dc.date.issued | 2022 | |
| dc.date.updated | 2023-01-18T08:24:24Z | |
| dc.description.abstract | Hard magnetic MnBi films were obtained by appropriate heat treatments of pulsed laser deposited (PLD) (Bi/Mn) films. X-ray diffraction patterns indicated a slight texture of MnBi crystallites and magnetometry measurements showed a slight preferential growth of the crystallites with their c-axis perpendicular to the film plane. Magnetic force microscopy (MFM) measurements displayed the presence of magnetic domains, whose size was in the micrometer range, and which were correlated to the MnBi grains observed in the sample. The addition of extra Mn layers did not modify significantly the previous structural and magnetic results. Nevertheless, the size of the magnetic domains increased to a few microns. However, on adding extra Bi layers, upon annealing, the MnBi grains grew with their c-axes perpendicular to the film plane. A perpendicular to the film magnetic anisotropy was deduced from the hysteresis loops, where an increase in the remanence of the magnetization was measured when the magnetic field was applied perpendicular to the film plane. In these samples, by measuring the magnetic domain configuration of the samples by MFM, we observed that the size of the magnetic domains exceeded the dimensions of the grains. This change in the magnetic structure of the films was assumed to be due to the coupling of the magnetization in the neighboring grains, and it was responsible for the decrease of the coercivity in the Bi rich samples. | en |
| dc.description.sponsorship | The authors acknowledge the partial finantial support from Universidad Publica de Navarra and from Gobierno de Espana. Open access funding by Universidad Publica de Navarra. | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Vergara, J; Favieres, C; Madurga, V.. (2022). Magnetic domain configurations of pulsed laser deposited MnBi hard magnetic films. Journal of Magnetism and Magnetic Materials. 554,169316 1-10 . | en |
| dc.identifier.doi | 10.1016/j.jmmm.2022.169316 | |
| dc.identifier.issn | 0304-8853 | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/44586 | |
| dc.language.iso | eng | en |
| dc.publisher | Elsevier | |
| dc.relation.ispartof | Journal of Magnetism and Magnetic Materials 554 (2022) 169316 | en |
| dc.relation.publisherversion | https://doi.org/10.1016/j.jmmm.2022.169316 | |
| dc.rights | © 2022 The Author(s). This is an open access article under the CC BY-NC-ND license | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Rare-earth free permanent magnets | en |
| dc.subject | MnBi hard magnetic films | en |
| dc.subject | Magnetic domain configuration | en |
| dc.subject | Perpendicular anisotropy | en |
| dc.subject | Pulsed laser deposition | en |
| dc.title | Magnetic domain configurations of pulsed laser deposited MnBi hard magnetic films | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/publishedVersion | |
| dspace.entity.type | Publication | |
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