Simulating selected magnetic properties of Tb x Pr1-x Al2, a magnetocaloric compound

Julio C G Tedesco; Vagner Jandre; Alexandre Magnus G Carvalho; Winfried Kockelmann; Daniel M Többens; Lisandro P Cardoso; Adelino A Coelho; Heloisa N Bordallo

doi:10.1088/1361-648X/ad19a2

Simulating selected magnetic properties of Tb _x Pr_1-_x Al₂, a magnetocaloric compound

J Phys Condens Matter. 2024 Jan 8;36(14). doi: 10.1088/1361-648X/ad19a2.

Authors

Affiliations

¹ Polytechnic Institute of the State University of Rio de Janeiro-UERJ, 28625-570, Rua Bonfim 25, Vila Amélia, Nova Friburgo, RJ, Brazil.
² Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark.
³ Institute of Physics 'Gleb Wataghin', Estate University of Campinas-UNICAMP, 13083- 859 Campinas, SP, Brazil.
⁴ Chemical Engineering Department, São Paulo Federal University, 09913-030 Diadema, SP, Brazil.
⁵ Mechanical Engineering Department, Maringá State University, 87020-900 Maringaé, PR, Brazil.
⁶ Institute of Physics Armando Dias Tavares, State University of Rio de Janeiro-UERJ, 20550-013, Rua São Francisco Xavier, 524, Rio de Janeiro, RJ, Brazil.
⁷ Science and Technology Facilities Council (STFC), Rutherford Appleton Laboratory, ISIS Facility, Harwell OX11 0Qx, United Kingdom.
⁸ Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB), Hahn-Meitner-Platz 1, 14109 Berlin, Germany.

PMID: 38157558
DOI: 10.1088/1361-648X/ad19a2

Abstract

Tb_xPr_1-xAl₂are ferrimagnetic materials exhibiting magnetocaloric effect that have gained considerable attention due to their potential use as an alternative in refrigeration, magnetic sensors and in information storage technology. Here using the mean field approach numerical simulations were conducted forx= 0.1, 0.2, 0.3, 0.4, 0.5, and 0.75, to analyze selected physical properties, such as x-ray and neutron powder diffraction, magnetization and heat capacity. The simulations successfully reproduced the experimental data providing a comprehensive characterization and improved understanding of this family of compound.

Keywords: ferrimagnetism; inelastic neutron scattering; magnetocaloric effect; rare earth intermetallic; x-rays and neutron powder diffraction.