Synthesis and Magnetic Properties of La0.67Sr0.33MnO3 Rod-like Particles

Stoichiometric La 0.67 Sr 0.33 MnO 3 (LSMO) was prepared by a surfactant assisted hydrothermal method. The cationic surfactant of cetyltrimethylammonium bromide (CTAB) that acts as a soft template was used to control the crystal growth. The as-synthesized product was characterized by X-ray powder di...

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Bibliographic Details
Published in:Synthesis and reactivity in inorganic, metal-organic, and nano-metal chemistry metal-organic, and nano-metal chemistry, 2008-05, Vol.38 (3), p.260-263
Main Authors: Sin, Wai Lun, Wong, Kin Hung, Li, Pei
Format: Article
Language:English
Subjects:
hydrothermal
nanoparticles
superparamagnetic
surfactant assisted
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Summary:Stoichiometric La 0.67 Sr 0.33 MnO 3 (LSMO) was prepared by a surfactant assisted hydrothermal method. The cationic surfactant of cetyltrimethylammonium bromide (CTAB) that acts as a soft template was used to control the crystal growth. The as-synthesized product was characterized by X-ray powder diffraction (XRD), transmission electron microscope (TEM) and vibrating sample magnetometer (VSM). It has been revealed that the product consists of rod like ferromagnetic LSMO single crystal nanoparticles. The processing temperature and the alkalinity of the solution have a decisive influence on the morphology, microstructure and growth orientation of the crystallites. All the nanoparticles exhibit room temperature superparamagnetism and discernible magnetic hysteresis at below 250 K.
ISSN:1553-3174
1553-3182
DOI:10.1080/15533170802023403