abstract

• For the efficient implementation of magnetic refrigeration technology in either industrial or domestic ways it is important to review the information available in the literature. This work presents a summary of 231 compounds based on lanthanum manganites with the formula (La1-xAx-yBy)MnO3, where A and B can be: Ag, Ba, Bi, Na, Ca, Ca, Cd, Sr, K, Te, Ce, Pb, Pr, Nd, Gd, Dy, Eu, □. The magnetocaloric properties of these compounds have been reported and discussed as a function of the synthesis methods and the substituent cations. A relevant finding deals with the optimum magnetocaloric materials are those that present the highest magnetic entropy change (ΔSM), and high relative cooling power (RCP). Also, the Curie or operating temperature (TC) needs to be the closest or lower than that of the environment, 298 K. The synthesis methods, which influence in some way the magnetocaloric properties, are also analyzed. Most of the manganites found in the literature presented in this work, have been reported to present a ferromagnetic–paramagnetic transition of second order. © 2022 Elsevier B.V.

authors

• Guerrero A.L.
• Palomares Sánchez Salvador Antonio
• Salazar-Muñoz V.E.

publication date

• 2022-01-01

published in

• Journal of Magnetism and Magnetic Materials  Journal

keywords

• Lanthanum manganites; Magnetic refrigeration; Magnetocaloric effect Lanthanum; Manganese oxide; Manganites; Efficient implementation; Ferromagnetic-paramagnetic transitions; Lanthanum manganites; Magnetic-entropy changes; Magnetocaloric materials; Magnetocaloric properties; Operating temperature; Refrigeration technology; Relative cooling power; Synthesis method; Magnetic refrigeration

Digital Object Identifier (DOI)

• 10.1016/j.jmmm.2022.169787

PubMed ID

start page

end page

volume

• 562

issue