Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer Spectroscopy

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, th...

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Autores: Heiniger-Schell, Juliana, Bharuth-Ram, Krish, Naicker, Kimara, Masondo, Vusumuzi, Dang, Thien Thanh, Escobar, Marianela, Díaz-Guerra, Carlos, Marschick, Georg, Masenda, Hilary, Gunnlaugsson, Haraldur Páll, Qi, Bingcui, Unzueta Solozabal, Iraultza, Ólafsson, Sveinn, Adhikari, Rajdeep, Peters, Gerrard, Naidoo, Deena, Schaaf, Peter, Zyabkin, Dmitry, Johnston, Karl, Becker, Sven, Jakob, Gerhard
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/61326
Acceso en línea:http://hdl.handle.net/10810/61326
Access Level:acceso abierto
Palabra clave:Ba-doped bismuth ferrite
emission Mössbauer spectroscopy
hyperfine magnetic field
Néel temperature
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spelling Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer SpectroscopyHeiniger-Schell, JulianaBharuth-Ram, KrishNaicker, KimaraMasondo, VusumuziDang, Thien ThanhEscobar, MarianelaDíaz-Guerra, CarlosMarschick, GeorgMasenda, HilaryGunnlaugsson, Haraldur PállQi, BingcuiUnzueta Solozabal, IraultzaÓlafsson, SveinnAdhikari, RajdeepPeters, GerrardNaidoo, DeenaSchaaf, PeterZyabkin, DmitryJohnston, KarlBecker, SvenJakob, GerhardBa-doped bismuth ferriteemission Mössbauer spectroscopyhyperfine magnetic fieldNéel temperatureEmission 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.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.MDPIEuropean Commission2023202320232023info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/61326reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/EC/H2020/654002info:eu-repo/grantAgreement/EC/HE/101057511info:eu-repo/grantAgreement/MINECO/RTI2018-094683-B-C55/https://www.mdpi.com/2073-4352/13/5/724info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/© 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/).oai:addi.ehu.eus:10810/613262026-06-18T09:23:17Z
dc.title.none.fl_str_mv Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer Spectroscopy
title Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer Spectroscopy
spellingShingle Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer Spectroscopy
Heiniger-Schell, Juliana
Ba-doped bismuth ferrite
emission Mössbauer spectroscopy
hyperfine magnetic field
Néel temperature
title_short Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer Spectroscopy
title_full Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer Spectroscopy
title_fullStr Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer Spectroscopy
title_full_unstemmed Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer Spectroscopy
title_sort Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer Spectroscopy
dc.creator.none.fl_str_mv Heiniger-Schell, Juliana
Bharuth-Ram, Krish
Naicker, Kimara
Masondo, Vusumuzi
Dang, Thien Thanh
Escobar, Marianela
Díaz-Guerra, Carlos
Marschick, Georg
Masenda, Hilary
Gunnlaugsson, Haraldur Páll
Qi, Bingcui
Unzueta Solozabal, Iraultza
Ólafsson, Sveinn
Adhikari, Rajdeep
Peters, Gerrard
Naidoo, Deena
Schaaf, Peter
Zyabkin, Dmitry
Johnston, Karl
Becker, Sven
Jakob, Gerhard
author Heiniger-Schell, Juliana
author_facet Heiniger-Schell, Juliana
Bharuth-Ram, Krish
Naicker, Kimara
Masondo, Vusumuzi
Dang, Thien Thanh
Escobar, Marianela
Díaz-Guerra, Carlos
Marschick, Georg
Masenda, Hilary
Gunnlaugsson, Haraldur Páll
Qi, Bingcui
Unzueta Solozabal, Iraultza
Ólafsson, Sveinn
Adhikari, Rajdeep
Peters, Gerrard
Naidoo, Deena
Schaaf, Peter
Zyabkin, Dmitry
Johnston, Karl
Becker, Sven
Jakob, Gerhard
author_role author
author2 Bharuth-Ram, Krish
Naicker, Kimara
Masondo, Vusumuzi
Dang, Thien Thanh
Escobar, Marianela
Díaz-Guerra, Carlos
Marschick, Georg
Masenda, Hilary
Gunnlaugsson, Haraldur Páll
Qi, Bingcui
Unzueta Solozabal, Iraultza
Ólafsson, Sveinn
Adhikari, Rajdeep
Peters, Gerrard
Naidoo, Deena
Schaaf, Peter
Zyabkin, Dmitry
Johnston, Karl
Becker, Sven
Jakob, Gerhard
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
dc.subject.none.fl_str_mv Ba-doped bismuth ferrite
emission Mössbauer spectroscopy
hyperfine magnetic field
Néel temperature
topic Ba-doped bismuth ferrite
emission Mössbauer spectroscopy
hyperfine magnetic field
Néel temperature
description 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.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/61326
url http://hdl.handle.net/10810/61326
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/EC/H2020/654002
info:eu-repo/grantAgreement/EC/HE/101057511
info:eu-repo/grantAgreement/MINECO/RTI2018-094683-B-C55/
https://www.mdpi.com/2073-4352/13/5/724
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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