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Ferromagnetic evolution in Nd3+, Ti4+ co-doped antiferromagnetic YFeO3

Bharadwaj, PSJ and Kollipara, VS and Varma, KBR (2021) Ferromagnetic evolution in Nd3+, Ti4+ co-doped antiferromagnetic YFeO3. In: Materials Research Bulletin, 141 .

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Official URL: https://doi.org/10.1016/j.materresbull.2021.111375


The structure-property correlation in polycrystalline powders of Y1-xNdxFe1-(4/3)yTiyO3 (x = 0.05, 0.10, 0.15; y = 0.05) was investigated. Diffuse reflectance spectra analysis revealed a reduction in the bandgap from 2.14 to 1.92 eV on increasing x. The remnant magnetization (Mr) and coercivity (Hc) increased from 0.145 to 7.50 emu/g and 0.099�8.46 kOe, respectively. The infusion of Nd3+ at Y3+ and Ti4+ at Fe3+ sites suggested that the magnetic behavior of the chosen composition of Y1-xNdxFe1-(4/3)yTiyO3 tilts away from the G-type anti-ferromagnetism. The magnetic orientation is achieved largely due to the Fe3+- O2� - Fe3+, Fe4+- O2� - Fe4+ super-exchange coupling, and Fe3+- O2� - Fe4+ double exchange coupling interactions. These materials in the present study with the enhanced magnetic and optical properties thus exhibit potential for varied applications. © 2021 Elsevier Ltd

Item Type: Journal Article
Publication: Materials Research Bulletin
Publisher: Elsevier Ltd
Additional Information: The copyright for this article belongs to Elsevier Ltd
Keywords: Exchange coupling; Ferromagnetism; Optical properties; Titanium compounds; Yttrium compounds, Antiferromagnetics; Co-doped; Double exchange; Dzyaloshinsky-Moriya interaction; Fe+3+; Ferromagnetics; Nd-3; Orthoferrites; Structure-property correlation; Super-exchange, Iron compounds
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 23 Jul 2021 10:13
Last Modified: 23 Jul 2021 10:13
URI: http://eprints.iisc.ac.in/id/eprint/68860

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