Enhanced Magnetocaloric Effect from Cr Substitution in Ising Lanthanide Gallium Garnets Ln3CrGa4O12 (Ln = Tb, Dy, Ho)
Source abstract
Abstract
A detailed study on the crystal structure and bulk magnetic properties of Cr substituted Ising type lanthanide gallium garnets Ln3CrGa4O12 (Ln = Tb, Dy, Ho) is carried out using room temperature powder X‐ray and neutron diffraction, magnetic susceptibility, isothermal magnetization, and heat capacity measurements. The magnetocaloric effect (MCE) in Ln3CrGa4O12 is compared to that of Ln3Ga5O12. In lower magnetic fields attainable by a permanent magnet (≤ 2 T), Cr substitution greatly enhances the MCE ‐ by 20% for Ln = Dy and 120% for Ln = Ho compared to the unsubstituted Ln3Ga5O12. This is likely due to changes in the magnetic ground state as Cr substitution also significantly reduces the frustration in the magnetic lattice for the Ising type Ln3Ga5O12.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Advanced Condensed Matter Physics · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Cavendish Laboratory University of Cambridge JJ Thomson Avenue Cambridge CB3 0HE UK
Funding
Engineering and Physical Sciences Research Council
References (43)
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