Effects of Annealing Conditions on the Microstructure and Magnetic Properties of the Perovskite Manganite, La0.75Sr0.25MnO3
D.O.J.Green, K-U. Neumann
TL;DR
This study investigates how different annealing conditions affect the microstructure and magnetic properties of La0.75Sr0.25MnO3, revealing that higher annealing temperatures and durations increase crystallite size and influence magnetic behavior.
Contribution
It provides new insights into the relationship between annealing parameters, microstructure, and magnetic properties of La0.75Sr0.25MnO3.
Findings
Increased annealing temperature and time lead to larger crystallite sizes.
Magnetic properties such as Curie temperature depend on crystallite size.
Spontaneous magnetic moment varies with annealing conditions.
Abstract
The effects of annealing conditions upon the microstructure and the magnetic properties of the colossal magnetoresistive manganite La0.75Sr0.25MnO3 have been investigated. Increasing the annealing temperature and time of annealing is seen to increase the size of crystallites within the samples. The spontaneous magnetic moment per formula unit and the Curie temperature, as obtained from Arrott plot analysis, are observed to depend upon the average size of crystallites.
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Taxonomy
TopicsMagnetic and transport properties of perovskites and related materials · Advanced Thermoelectric Materials and Devices · Shape Memory Alloy Transformations