Pressure effects on nanostructured manganites

We have measured the pressure sensitivity of magnetic properties on La5 / 8 - y Pry Ca3 / 8 MnO3 (y = 0.3) nanostructured powders. Samples were synthesized following a microwave assisted denitration process and a final heat treatment at different temperatures to control the grain size of the samples...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Acha, C., Garbarino, G., Leyva, A.G.
Formato: JOUR
Materias:
Magnetic properties
Manganites
Nanoparticles
Pressure effects
Hydrostatic pressures
Microwave assisted denitration
Nanostructuration
Pressure sensitivity
Thermomagnetics
Deformation
Denitrification
Grain size and shape
Heat treatment
Hydrostatic pressing
Magnetization
Nanostructured materials
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09214526_v398_n2_p212_Acha
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_09214526_v398_n2_p212_Acha
record_format dspace
spelling todo:paper_09214526_v398_n2_p212_Acha2023-10-03T15:45:18Z Pressure effects on nanostructured manganites Acha, C. Garbarino, G. Leyva, A.G. Magnetic properties Manganites Nanoparticles Pressure effects Hydrostatic pressures Microwave assisted denitration Nanostructuration Pressure sensitivity Thermomagnetics Deformation Denitrification Grain size and shape Heat treatment Hydrostatic pressing Magnetic properties Magnetization Nanostructured materials Pressure effects Manganites We have measured the pressure sensitivity of magnetic properties on La5 / 8 - y Pry Ca3 / 8 MnO3 (y = 0.3) nanostructured powders. Samples were synthesized following a microwave assisted denitration process and a final heat treatment at different temperatures to control the grain size of the samples. A span in grain diameters from 40 nm to ∼ 1000 nm was obtained. Magnetization curves as a function of temperature were measured following different thermomagnetic histories. AC susceptibility as a function of temperature was also measured at different hydrostatic pressures (up to 10 kbar) and for different frequencies. Our results indicate that the nanostructuration plays a role of an internal pressure, producing a structural deformation with similar effects to those obtained under an external hydrostatic pressure. © 2007 Elsevier B.V. All rights reserved. Fil:Acha, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Garbarino, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09214526_v398_n2_p212_Acha
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Magnetic properties
Manganites
Nanoparticles
Pressure effects
Hydrostatic pressures
Microwave assisted denitration
Nanostructuration
Pressure sensitivity
Thermomagnetics
Deformation
Denitrification
Grain size and shape
Heat treatment
Hydrostatic pressing
Magnetic properties
Magnetization
Nanostructured materials
Pressure effects
Manganites
spellingShingle Magnetic properties
Manganites
Nanoparticles
Pressure effects
Hydrostatic pressures
Microwave assisted denitration
Nanostructuration
Pressure sensitivity
Thermomagnetics
Deformation
Denitrification
Grain size and shape
Heat treatment
Hydrostatic pressing
Magnetic properties
Magnetization
Nanostructured materials
Pressure effects
Manganites
Acha, C.
Garbarino, G.
Leyva, A.G.
Pressure effects on nanostructured manganites
topic_facet Magnetic properties
Manganites
Nanoparticles
Pressure effects
Hydrostatic pressures
Microwave assisted denitration
Nanostructuration
Pressure sensitivity
Thermomagnetics
Deformation
Denitrification
Grain size and shape
Heat treatment
Hydrostatic pressing
Magnetic properties
Magnetization
Nanostructured materials
Pressure effects
Manganites
description We have measured the pressure sensitivity of magnetic properties on La5 / 8 - y Pry Ca3 / 8 MnO3 (y = 0.3) nanostructured powders. Samples were synthesized following a microwave assisted denitration process and a final heat treatment at different temperatures to control the grain size of the samples. A span in grain diameters from 40 nm to ∼ 1000 nm was obtained. Magnetization curves as a function of temperature were measured following different thermomagnetic histories. AC susceptibility as a function of temperature was also measured at different hydrostatic pressures (up to 10 kbar) and for different frequencies. Our results indicate that the nanostructuration plays a role of an internal pressure, producing a structural deformation with similar effects to those obtained under an external hydrostatic pressure. © 2007 Elsevier B.V. All rights reserved.
format JOUR
author Acha, C.
Garbarino, G.
Leyva, A.G.
author_facet Acha, C.
Garbarino, G.
Leyva, A.G.
author_sort Acha, C.
title Pressure effects on nanostructured manganites
title_short Pressure effects on nanostructured manganites
title_full Pressure effects on nanostructured manganites
title_fullStr Pressure effects on nanostructured manganites
title_full_unstemmed Pressure effects on nanostructured manganites
title_sort pressure effects on nanostructured manganites
url http://hdl.handle.net/20.500.12110/paper_09214526_v398_n2_p212_Acha
work_keys_str_mv AT achac pressureeffectsonnanostructuredmanganites
AT garbarinog pressureeffectsonnanostructuredmanganites
AT leyvaag pressureeffectsonnanostructuredmanganites
_version_ 1807323363986636800

Ejemplares similares