Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3

Autores
Salva, Horacio Ramon; Ghilarducci, Ada Albertina; Sanchez, Rodolfo Daniel; Vázquez, C.
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have measured the magnetic field dependence of the anelastic modulus and the electric resistance of a ceramic sample of the magnetoresistant perovskite La2/3Ca1/3MnO3 around the metal-insulator transition by the vibrating reed technique (2.5 KHz). Previous work showed that the modulus becomes higher while the internal friction has a peak at the transition temperature (Tc = 262 K). In this work, improvements made on the equipment allowed us to measure at constant deformations (ε<105) and magnetic fields up to 4500 Gauss. We made isothermal measurements of internal friction, modulus and resistance as a function of an applied magnetic field. We found that most of the changes induced by the magnetic field take place in a few degrees (almost 5 K) near the transition temperature where the changes in resistance are more important. Up to the highest magnetic field applied, we found 3% maximum variations of the modulus and no hysteresis while cycling the magnetic field. We suppose that the experiment is placed in the linear response of the inverse Wiedemann effect, due to the small deformations used, and that the ferromagnetic domain structure is responsible for the observed effects. Some additional measurements are needed (magnetic hysteresis loops) to be compared with our results.
Fil: Salva, Horacio Ramon. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ghilarducci, Ada Albertina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sanchez, Rodolfo Daniel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vázquez, C.. Universidad de Santiago de Compostela; España
Materia
Elastic Modulus
Manganite
Perovskite
Magnetism
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/68585
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/68585
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3Salva, Horacio RamonGhilarducci, Ada AlbertinaSanchez, Rodolfo DanielVázquez, C.Elastic ModulusManganitePerovskiteMagnetismhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We have measured the magnetic field dependence of the anelastic modulus and the electric resistance of a ceramic sample of the magnetoresistant perovskite La2/3Ca1/3MnO3 around the metal-insulator transition by the vibrating reed technique (2.5 KHz). Previous work showed that the modulus becomes higher while the internal friction has a peak at the transition temperature (Tc = 262 K). In this work, improvements made on the equipment allowed us to measure at constant deformations (ε<105) and magnetic fields up to 4500 Gauss. We made isothermal measurements of internal friction, modulus and resistance as a function of an applied magnetic field. We found that most of the changes induced by the magnetic field take place in a few degrees (almost 5 K) near the transition temperature where the changes in resistance are more important. Up to the highest magnetic field applied, we found 3% maximum variations of the modulus and no hysteresis while cycling the magnetic field. We suppose that the experiment is placed in the linear response of the inverse Wiedemann effect, due to the small deformations used, and that the ferromagnetic domain structure is responsible for the observed effects. Some additional measurements are needed (magnetic hysteresis loops) to be compared with our results.Fil: Salva, Horacio Ramon. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ghilarducci, Ada Albertina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Sanchez, Rodolfo Daniel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Vázquez, C.. Universidad de Santiago de Compostela; EspañaElsevier Science Sa2000-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68585Salva, Horacio Ramon; Ghilarducci, Ada Albertina; Sanchez, Rodolfo Daniel; Vázquez, C.; Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3; Elsevier Science Sa; Journal of Alloys and Compounds; 310; 1-2; 6-2000; 44-460925-8388CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0925-8388(00)00986-5info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925838800009865info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:51Zoai:ri.conicet.gov.ar:11336/68585instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:37:51.741CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3
title Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3
spellingShingle Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3
Salva, Horacio Ramon
Elastic Modulus
Manganite
Perovskite
Magnetism
title_short Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3
title_full Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3
title_fullStr Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3
title_full_unstemmed Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3
title_sort Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3
dc.creator.none.fl_str_mv Salva, Horacio Ramon
Ghilarducci, Ada Albertina
Sanchez, Rodolfo Daniel
Vázquez, C.
author Salva, Horacio Ramon
author_facet Salva, Horacio Ramon
Ghilarducci, Ada Albertina
Sanchez, Rodolfo Daniel
Vázquez, C.
author_role author
author2 Ghilarducci, Ada Albertina
Sanchez, Rodolfo Daniel
Vázquez, C.
author2_role author
author
author
dc.subject.none.fl_str_mv Elastic Modulus
Manganite
Perovskite
Magnetism
topic Elastic Modulus
Manganite
Perovskite
Magnetism
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We have measured the magnetic field dependence of the anelastic modulus and the electric resistance of a ceramic sample of the magnetoresistant perovskite La2/3Ca1/3MnO3 around the metal-insulator transition by the vibrating reed technique (2.5 KHz). Previous work showed that the modulus becomes higher while the internal friction has a peak at the transition temperature (Tc = 262 K). In this work, improvements made on the equipment allowed us to measure at constant deformations (ε<105) and magnetic fields up to 4500 Gauss. We made isothermal measurements of internal friction, modulus and resistance as a function of an applied magnetic field. We found that most of the changes induced by the magnetic field take place in a few degrees (almost 5 K) near the transition temperature where the changes in resistance are more important. Up to the highest magnetic field applied, we found 3% maximum variations of the modulus and no hysteresis while cycling the magnetic field. We suppose that the experiment is placed in the linear response of the inverse Wiedemann effect, due to the small deformations used, and that the ferromagnetic domain structure is responsible for the observed effects. Some additional measurements are needed (magnetic hysteresis loops) to be compared with our results.
Fil: Salva, Horacio Ramon. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ghilarducci, Ada Albertina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sanchez, Rodolfo Daniel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vázquez, C.. Universidad de Santiago de Compostela; España
description We have measured the magnetic field dependence of the anelastic modulus and the electric resistance of a ceramic sample of the magnetoresistant perovskite La2/3Ca1/3MnO3 around the metal-insulator transition by the vibrating reed technique (2.5 KHz). Previous work showed that the modulus becomes higher while the internal friction has a peak at the transition temperature (Tc = 262 K). In this work, improvements made on the equipment allowed us to measure at constant deformations (ε<105) and magnetic fields up to 4500 Gauss. We made isothermal measurements of internal friction, modulus and resistance as a function of an applied magnetic field. We found that most of the changes induced by the magnetic field take place in a few degrees (almost 5 K) near the transition temperature where the changes in resistance are more important. Up to the highest magnetic field applied, we found 3% maximum variations of the modulus and no hysteresis while cycling the magnetic field. We suppose that the experiment is placed in the linear response of the inverse Wiedemann effect, due to the small deformations used, and that the ferromagnetic domain structure is responsible for the observed effects. Some additional measurements are needed (magnetic hysteresis loops) to be compared with our results.
publishDate 2000
dc.date.none.fl_str_mv 2000-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/68585
Salva, Horacio Ramon; Ghilarducci, Ada Albertina; Sanchez, Rodolfo Daniel; Vázquez, C.; Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3; Elsevier Science Sa; Journal of Alloys and Compounds; 310; 1-2; 6-2000; 44-46
0925-8388
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68585
identifier_str_mv Salva, Horacio Ramon; Ghilarducci, Ada Albertina; Sanchez, Rodolfo Daniel; Vázquez, C.; Magnetic held dependence of elastic modulus and resistance in La2/3Ca1/3MnO3; Elsevier Science Sa; Journal of Alloys and Compounds; 310; 1-2; 6-2000; 44-46
0925-8388
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/S0925-8388(00)00986-5
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925838800009865
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613194629251072
score 13.070432

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