Large magnetocaloric effect in Gd4Co3
Niharika Mohapatra, Kartik K Iyer, E.V. Sampathkumaran
TL;DR
This paper reports a significant magnetocaloric effect in Gd4Co3 with high refrigeration capacity and nonhysteretic magnetization, making it promising for magnetic cooling applications.
Contribution
It demonstrates a large entropy change and nonhysteretic magnetization in Gd4Co3, advancing magnetic refrigeration material research.
Findings
Large entropy change below 300 K peaking at 220 K
High refrigeration capacity surpassing Gd
Nonhysteretic isothermal magnetization
Abstract
We report a large entropy change (DeltaS) below 300 K, peaking near TC= 220 K, due to isothermal change of magnetic field, for Gd4Co3, with a refrigeration capacity higher than that of Gd. Notably, the isothermal magnetization is nonhysteretic - an important criterion for magnetic refrigeration without loss. DeltaS behavior is also compared with that of magnetoresistance.
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Taxonomy
TopicsMagnetic and transport properties of perovskites and related materials · Inorganic Chemistry and Materials · Magnetic Properties of Alloys