Magnetocaloric effect of nanostructured La0.6Sr0.4CoO3

TL;DR

This study explores how nanostructuring La0.6Sr0.4CoO3 within porous templates enhances its magnetocaloric properties, showing promise for magnetic refrigeration applications.

Contribution

It demonstrates a novel synthesis method under confinement that improves key magnetocaloric parameters of La0.6Sr0.4CoO3 nanostructures.

Findings

Enhanced saturation magnetization and Curie temperature.

Increased maximum entropy change and relative cooling power.

Potential application in magnetic refrigeration devices.

Abstract

In this study, we investigate the magnetic and magnetocaloric properties of nanostructured La0.6Sr0.4CoO3 (LSC) samples synthesized under confinement conditions within porous templates. Using this method, we obtained de-agglomerated nanoparticles, which provide us with the feasibility of applying them in nanoparticle films that can be tailored to intricate geometries. We specifically explored the impact of pore size of the template on key parameters including saturation magnetization (MS), Curie temperature (TC), maximum entropy change ({\Delta}S), and relative cooling power (RCP). Our findings reveal enhancements in those quantities, that are likely to be related with the nanostructure of the samples, indicating the potential of nanostructured LSC as an active material for magnetic refrigeration devices. Our alternative approach of synthesizing magnetocaloric materials under confinement conditions presents an exciting prospect for future research and development in the field.