Effect of nanoscale size reduction on the magnetic properties of Pr0.6Sr0.4MnO3
Source abstract
Abstract
Abstract The ferromagnetic Pr0.6Sr0.4MnO3 sample has been subjected to time bound high energy planetary ball milling with an aim to reduce the particle size. When the particle size is analyzed as a function of milling time, it is found that particle size decreases with increasing milling time and then saturates at a certain value. The implications of the decrease in particle size on magnetic properties have been carefully studied by analyzing the magnetization data in detail. With a decrease in particle size, the Curie temperature, TC and the magnitude of magnetization drops. A deviation in inverse magnetic susceptibility from the Curie-Weiss behaviour has been noticed for nanoparticles which suggest the presence of quenched disorder due to particle size reduction. The strength of magnetic interactions switches from long range to short range with a systematic decrease in particle size. The observed properties can be explained considering the core–shell structure of the nanoparticle where the surface defects strongly influence the degree of disorder in the system.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Magnetic Properties of Alloys · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (51)
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