We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Synthesis, structural and magnetic behavior and theoretical approach to study the magnetic and magnetocaloric properties of the half-doped perovskite Nd0.5Ba0.5CoO3.
- Authors
Souifi, Karim.; Nasri, M.; Hcini, Sobhi.; Alzahrani, Bandar; Bouazizi, Mohamed Lamjed; Dhahri, E.; Hlil, E. K.; Khelifi, J.
- Abstract
In the current research work, half-doped perovskite cobaltite Nd0.5Ba0.5CoO3 (NBCO) was prepared by the sol–gel process. We study the structural, morphological, magnetocaloric and magnetic properties of NBCO. The X-ray diffraction patterns showed that the NBCO sample crystallizes in the orthorhombic distorted symmetry with the Pmmm space group. Magnetic measurements indicated the existence of a paramagnetic (PM)–ferromagnetic (FM) transition at TC = 125 K. A ferromagnetic-to-antiferromagnetic transition is observed at T = 25 K. The second-order transition was confirmed by both Banerjee criterion and construction of the universal curve. Indeed, the magnetic entropy change (-ΔSM) value estimated by Landau and Hamad theories is close to that obtained using the classical Maxwell relation. The value of the relative cooling power (RCP) under a magnetic field of 5 T is 114 J. kg−1; therefore, this compound can be considered as a potential candidate for application in the field of magnetic refrigeration.
- Subjects
MAGNETOCALORIC effects; MAGNETIC properties; MAGNETIC cooling; MAGNETIC fields; MAGNETIC measurements; APPROACH behavior; CALORIC content of foods
- Publication
Journal of Materials Science: Materials in Electronics, 2021, Vol 32, Issue 11, p15291
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-021-06079-y