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Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer Spectroscopy
dc.contributor.author | Heiniger-Schell, Juliana | |
dc.contributor.author | Bharuth-Ram, Krish | |
dc.contributor.author | Naicker, Kimara | |
dc.contributor.author | Masondo, Vusumuzi | |
dc.contributor.author | Dang, Thien Thanh | |
dc.contributor.author | Escobar, Marianela | |
dc.contributor.author | Díaz-Guerra, Carlos | |
dc.contributor.author | Marschick, Georg | |
dc.contributor.author | Masenda, Hilary | |
dc.contributor.author | Gunnlaugsson, Haraldur P. | |
dc.contributor.author | Qi, Bingcui | |
dc.contributor.author | Unzueta Solozabal, Iraultza | |
dc.contributor.author | Ólafsson, Sveinn | |
dc.contributor.author | Adhikari, Rajdeep | |
dc.contributor.author | Peters, Gerrard | |
dc.contributor.author | Naidoo, Deena | |
dc.contributor.author | Schaaf, Peter | |
dc.contributor.author | Zyabkin, Dmitry | |
dc.contributor.author | Johnston, Karl | |
dc.contributor.author | Becker, Sven | |
dc.contributor.author | Jakob, Gerhard | |
dc.date.accessioned | 2023-06-07T17:44:35Z | |
dc.date.available | 2023-06-07T17:44:35Z | |
dc.date.issued | 2023-04-25 | |
dc.identifier.citation | Crystals 13(5) : (2023) // Article ID 724 | es_ES |
dc.identifier.issn | 2073-4352 | |
dc.identifier.uri | http://hdl.handle.net/10810/61326 | |
dc.description.abstract | Emission 57Fe Mössbauer spectroscopy (eMS), following the implantation of radioactive 57Mn+ ions, has been used to study the temperature dependence of the hyperfine magnetic field at Fe sites in Ba-doped BiFeO3 (BFO) thin films. 57Mn β decays (t1/2 = 90 s) to the 14.4 keV Mössbauer state of 57Fe, thus allowing online eMS measurements at a selection of sample temperatures during Mn implantation. The eMS measurements were performed on two thin film BFO samples, 88 nm and 300 nm thick, and doped to 15% with Ba ions. The samples were prepared by pulsed laser deposition on SrTiO3 substrates. X-ray diffraction analyses of the samples showed that the films grew in a tetragonal distorted structure. The Mössbauer spectra of the two films, measured at absorber temperatures in the range 301 K–700 K, comprised a central pair of paramagnetic doublets and a magnetic sextet feature in the wings. The magnetic component was resolved into (i) a component attributed to hyperfine interactions at Fe3+ ions located in octahedral sites (Bhf); and (ii) to Fe3+ ions in implantation induced lattice defects, which were characterized by a distribution of the magnetic field BDistr. The hyperfine magnetic field at the Fe probes in the octahedral site has a room temperature value of Bhf = 44.5(9) T. At higher sample temperatures, the Bhf becomes much weaker, with the Fe3+ hyperfine magnetic contribution disappearing above 700 K. Simultaneous analysis of the Ba–BFO eMS spectra shows that the variation of the hyperfine field with temperature follows the Brillouin curve for S = 5/2. | es_ES |
dc.description.sponsorship | This work has received the financial support from the Federal Ministry of Education and Research (BMBF) through grants 05K16PGA, 05K22PGA, 05K16SI1, 05K19SI1 “eMIL” and “eMMA”; from the European Union’s Horizon 2020 Framework research and innovation program under grant agreement no. 654002 (ENSAR2) and 101057511 (EURO-LABS); from the Ministry of Economy and Competitiveness Consolider—Ingenio Project CSD2009 0013 “IMAGINE” Spain, and Banco Santander-UCM, project PR87/19-22613; from the Austrian Science Fund (FWF) through projects P26830 and P31423, from the Icelandic University Research Fund; from the National Research Foundation (South Africa); and from the Ministry of Economy and Competitiveness (MINECO/FEDER) for the Grant No. RTI2018-094683-B-C55 C55 and Basque Government Grant No. IT-1500-22. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/654002 | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/HE/101057511 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/RTI2018-094683-B-C55 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject | Ba-doped bismuth ferrite | es_ES |
dc.subject | emission Mössbauer spectroscopy | es_ES |
dc.subject | hyperfine magnetic field | es_ES |
dc.subject | Néel temperature | es_ES |
dc.title | Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer Spectroscopy | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2023-05-26T13:20:49Z | |
dc.rights.holder | © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2073-4352/13/5/724 | es_ES |
dc.identifier.doi | 10.3390/cryst13050724 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Física aplicada | |
dc.departamentoeu | Fisika aplikatua |
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