Magnetic and magnetocaloric properties of nanocrystalline sample of a glassy ferromagnetic compound: Modification of short range ordering. (June 2022)

• Record Type: Journal Article
• Authors: Chatterjee, Soma; Mazumdar, Dipak; Das, Kalipada; Das, I.
• Is Part Of: Materials research bulletin. Volume 150(2022)
• Publication Date: 2022-06
• Subjects: Manganites -- Magnetocaloric effect -- Nanocrystalline compound; 75.47.Lx -- 73.63.Bd; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2022.111758
• Languages: English
• ISSNs: 0025-5408

Abstract

Highlights: Large magnetocaloric effect is observed in Gd0.5 Sr0.5 MnO3 compound. Hysteresis loop is disappeared in nanocrystalline Gd0.5 Sr0.5 MnO3 sample. Anomalous variation of average cluster moment was found in nanocrystalline Gd0.5 Sr0.5 MnO3 . Abstract: The modification of magnetic interactions due to the reduction of particle size has been explored in the case of nanocrystalline Gd0.5 Sr0.5 MnO3 compound. In contrast to the normal ferromagnetic or antiferromagnetic compounds, the studied nanoparticle exhibits quite different magnetic and magnetocaloric properties. The experimental outcomes are also compared with its bulk counterparts having disordered ferromagnetic ground state. Additionally, at the cryogenic temperature range, the significant magnetocaloric effect in both the samples indicate the applicability as a suitable magnetic refrigerant material. Moreover, the desertion nature of the magnetic hysteresis loop due to the field cycling indicates the superiority of the nanocrystalline compound over its bulk counterpart. Graphical abstract: Image, graphical abstract