Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films

Commercial LaAlO₃ substrates were thermally cycled simulating a procedure similar to those followed during TiO₂ and SnO₂ dilute magnetic semiconductors’ film pulsed laser deposition. Ferromagneticlike behavior was found in some substrates, in which metallic iron impurities were detected by x-ray pho...

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Autores principales: Golmar, Federico, Mudarra Navarro, Azucena Marisol, Rodríguez Torres, Claudia Elena, Sánchez, Francisco Homero, Saccone, Fabio Daniel, Dos Santos Claro, Paula Cecilia, Benitez, Guillermo Alfredo, Schilardi, Patricia Laura
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Exactas
Física
ferromagnetism
electromagnetism
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/162829
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-162829
record_format dspace
spelling I19-R120-10915-1628292024-02-19T20:08:30Z http://sedici.unlp.edu.ar/handle/10915/162829 Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films Golmar, Federico Mudarra Navarro, Azucena Marisol Rodríguez Torres, Claudia Elena Sánchez, Francisco Homero Saccone, Fabio Daniel Dos Santos Claro, Paula Cecilia Benitez, Guillermo Alfredo Schilardi, Patricia Laura 2008 2024-02-19T13:31:52Z en Ciencias Exactas Física ferromagnetism electromagnetism Commercial LaAlO₃ substrates were thermally cycled simulating a procedure similar to those followed during TiO₂ and SnO₂ dilute magnetic semiconductors’ film pulsed laser deposition. Ferromagneticlike behavior was found in some substrates, in which metallic iron impurities were detected by x-ray photoelectron spectroscopy and total reflection x-ray fluorescence measurements. A thorough experimental investigation, using high resolution techniques, showed that these impurities were introduced by the procedure used to fix the substrates to the oven silicon holders. It is suggested that magnetism observed previously in nominally pure SnO₂ films is of extrinsic origin. Instituto de Física La Plata Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
ferromagnetism
electromagnetism
spellingShingle Ciencias Exactas
Física
ferromagnetism
electromagnetism
Golmar, Federico
Mudarra Navarro, Azucena Marisol
Rodríguez Torres, Claudia Elena
Sánchez, Francisco Homero
Saccone, Fabio Daniel
Dos Santos Claro, Paula Cecilia
Benitez, Guillermo Alfredo
Schilardi, Patricia Laura
Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
topic_facet Ciencias Exactas
Física
ferromagnetism
electromagnetism
description Commercial LaAlO₃ substrates were thermally cycled simulating a procedure similar to those followed during TiO₂ and SnO₂ dilute magnetic semiconductors’ film pulsed laser deposition. Ferromagneticlike behavior was found in some substrates, in which metallic iron impurities were detected by x-ray photoelectron spectroscopy and total reflection x-ray fluorescence measurements. A thorough experimental investigation, using high resolution techniques, showed that these impurities were introduced by the procedure used to fix the substrates to the oven silicon holders. It is suggested that magnetism observed previously in nominally pure SnO₂ films is of extrinsic origin.
format Articulo
Articulo
author Golmar, Federico
Mudarra Navarro, Azucena Marisol
Rodríguez Torres, Claudia Elena
Sánchez, Francisco Homero
Saccone, Fabio Daniel
Dos Santos Claro, Paula Cecilia
Benitez, Guillermo Alfredo
Schilardi, Patricia Laura
author_facet Golmar, Federico
Mudarra Navarro, Azucena Marisol
Rodríguez Torres, Claudia Elena
Sánchez, Francisco Homero
Saccone, Fabio Daniel
Dos Santos Claro, Paula Cecilia
Benitez, Guillermo Alfredo
Schilardi, Patricia Laura
author_sort Golmar, Federico
title Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
title_short Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
title_full Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
title_fullStr Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
title_full_unstemmed Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
title_sort extrinsic origin of ferromagnetism in single crystalline laalo₃ substrates and oxide films
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/162829
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