A sonochemical-assisted synthesis and annealing temperature effect of La0.7Sr0.3MnO3 nanoparticles

Phan Van Cuong; Joonghoe Dho; Hyo Yeol Park; Do Hyung Kim

doi:10.1007/s00339-008-4952-x

A sonochemical-assisted synthesis and annealing temperature effect of La_0.7Sr_0.3MnO₃ nanoparticles

Phan Van Cuong, Joonghoe Dho, Hyo Yeol Park, Do Hyung Kim

Department of Physics

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

This paper reports on the sonochemical-assisted synthesis of La _0.7Sr_0.3MnO₃ (LSMO) nanoparticles (NPs) which have a single-crystalline perovskite structure. The average particle size of LSMO NPs was controlled from about 40 to 120 nm by changing the annealing temperatures from 750 to 1050°C. The particle size, electrical resistivity, and ferromagnetic transition temperature of LSMO NPs were strongly dependent on the annealing temperature. A substantial decrease in resistivity and an enhancement in the insulator-metal transition temperature were found on increasing the annealing temperature. Furthermore, the enhancement in magnetization and paramagnetic-ferromagnetic (PM-FM) transition temperatures was observed as the annealing temperature increases.

Original language	English
Pages (from-to)	567-571
Number of pages	5
Journal	Applied Physics A: Materials Science and Processing
Volume	95
Issue number	2
DOIs	https://doi.org/10.1007/s00339-008-4952-x
State	Published - May 2009

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title = "A sonochemical-assisted synthesis and annealing temperature effect of La0.7Sr0.3MnO3 nanoparticles",

abstract = "This paper reports on the sonochemical-assisted synthesis of La 0.7Sr0.3MnO3 (LSMO) nanoparticles (NPs) which have a single-crystalline perovskite structure. The average particle size of LSMO NPs was controlled from about 40 to 120 nm by changing the annealing temperatures from 750 to 1050°C. The particle size, electrical resistivity, and ferromagnetic transition temperature of LSMO NPs were strongly dependent on the annealing temperature. A substantial decrease in resistivity and an enhancement in the insulator-metal transition temperature were found on increasing the annealing temperature. Furthermore, the enhancement in magnetization and paramagnetic-ferromagnetic (PM-FM) transition temperatures was observed as the annealing temperature increases.",

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AU - Dho, Joonghoe

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AU - Kim, Do Hyung

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AB - This paper reports on the sonochemical-assisted synthesis of La 0.7Sr0.3MnO3 (LSMO) nanoparticles (NPs) which have a single-crystalline perovskite structure. The average particle size of LSMO NPs was controlled from about 40 to 120 nm by changing the annealing temperatures from 750 to 1050°C. The particle size, electrical resistivity, and ferromagnetic transition temperature of LSMO NPs were strongly dependent on the annealing temperature. A substantial decrease in resistivity and an enhancement in the insulator-metal transition temperature were found on increasing the annealing temperature. Furthermore, the enhancement in magnetization and paramagnetic-ferromagnetic (PM-FM) transition temperatures was observed as the annealing temperature increases.

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A sonochemical-assisted synthesis and annealing temperature effect of La_0.7Sr_0.3MnO₃ nanoparticles

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