Magnetocaloric effect in polycrystalline DyAl${}_2$

In recent years, natural gas has acquired an increasing geopolitical importance as a source of energy transported over long distances for consumption in many different sectors of the economy. However, modern technologies for the liquefaction of hydrocarbons are very complex and expensive. Taking into account the significant progress in the field of modern superconducting magnetic field sources, magnetic cooling is becoming an alternative to traditional vapor-gas cooling. In the cryogenic temperature range, the Laves phases are among the most effective materials with a magnetocaloric effect. This article is devoted to the study of the magnetocaloric effect in magnetic fields up to 3 T in DyAl$_2$. In these magnetic field the change of the magnetic entropy in this intermetallic compound is $\Delta S_m$ = -9.26 J/(kg$\cdot$K) and is achieved near the Curie temperature $T_C$ = 55 K.