A comparative study of the magnetic and magnetocaloric effect of polycrystalline Gd0.9Y0.1MnO3 and Gd0.7Y0.3MnO3 compounds: Influence of Y-ions on the magnetic state of GdMnO3

The modification of the magnetic ground state of the GdMnO3 compound has been explored with Y-doping on the Gd-site. The study on the magnetic properties indicates the existence of a weak ferromagnetic phase upon a 10% Y-doped sample. However, the strength of the ferromagnetic interaction becomes feeble in the 30% Y-doped sample. Such modifications of the magnetic ground states are analyzed considering the breaking of correlated weak ferromagnetic chains due to doping of non-magnetic Y-ions. In addition to that, the magnetocaloric effect has also been affected by the doping concentrations of Y-ions. The significant value of magnetic entropy change and relative cooling power of both the studied systems indicate the possible utilization of the materials as efficient magnetic refrigerants at the cryogenic temperature.

Automated summary

The modification of the magnetic ground state in GdMnO3 compound through Y-doping on the Gd-site has been investigated. The study reveals that Y-doping affects the strength of the ferromagnetic interaction and the magnetocaloric effect. The results indicate the potential application of these materials as efficient magnetic refrigerants at cryogenic temperatures.