Mixed rare earth oxides derived from monazite sand as an inexpensive precursor material for room temperature magnetic refrigeration applications

Rare-earth-containing perovskite nanomaterials: design, synthesis, properties and applications

“…The entropy changes of RE-based perovskite materials between magnetic ordering and disordering states result in a magnetocaloric effect, suitable for magnetic refrigeration. 23,296,297 As depicted in Fig. 28A, the initial randomly oriented magnetic moments are aligned by a magnetic field, resulting in the heating of the magnetocaloric material.…”

“…; [20][21][22] magnetic perovskites are used in magnetic refrigeration, information storage, biomedical imaging and other fields. [23][24][25] With the increasing attention on the nanotechnology, scientists have been trying to downscale the perovskite structures into the nano regime, so as to further boost their performances. 1,26,27 Compared with bulk counterpart, nanosized perovskites exhibit a series of advantages: for the fabrication of thin films and flexible devices, PNMs display a high processability; 28,29 for catalysis, PNMs feature rich and modulatable facets and active sites; 30,31 besides, benefiting from the small-size effect and quantum effect, PNMs are endowed with outstanding photo-electro-magnetic properties.…”

Influence of Ni content on structural, magnetocaloric and electrical properties in manganite La0.6Ba0.2Sr0.2Mn1−xNixO3 (0 ≤ x ≤ 0.1) type perovskites

“…Magnetic refrigeration (MR) technology based on the magnetocaloric effect (MCE) is advancing to become a suitable technology, compared to conventional gas refrigeration, [1][2][3] due to a number of advantages. 4 The MCE is generally characterized by two factors: change in entropy (DS M ) and relative cooling power (RCP).…”

Effect of Calcination Temperature and Ca:eg Ratio on Tl and Osl Curve Components of Neighborite

“…For example, luminescent perovskites are used in lighting [9], displays [10], biological imaging [11] or sensing [12], while some photoelectric perovskites are used in areas such as electrocatalysis [13] and photo-catalysis [14]. While the fields of use of perovskites with magnetic properties are magnetic cooling [15], information storage [16], biomedical imaging [17]; electrical perovskites are used to prepare ionic conductors [18], dielectric devices [19], etc. As we approach the present date, it is observed that researchers have done a lot of research into the luminescence in solid-state perovskites.…”