Anand, Khyati and Pal, Arkadeb and Joshi, Amish G and Pal, Prabir and Singh, Rahul and Yen, Peter Tsung-Wen and Huang, S M and Alam, Md and Kumari, Seema and Sathe, Vasant and Chakravarty, Sujoy and Mohan, Anita and Chatterjee, Sandip (2022) Giant exchange bias in antiferromagnetic Pr2CoFe0.5Mn0.5O6: a structural and magnetic properties study. Journal of Physics D-Applied Physics, 55 (36). Art No-365004. ISSN 0022-3727

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Antiferromagnetic (AFM) materials with a colossal exchange bias (EB) effect find applications as high-density spintronic devices. We report structural (geometrical and electronic) and magnetic studies in the polycrystalline Pr2CoFe0.5Mn0.5O6 double perovskite system. The observed lack of training effect suggests the existence of robust EB. In addition, the detailed magnetic studies and Raman studies unravel the Griffith-like phase along with the spin-phonon coupling in the present system. The x-ray photoemission spectroscopy (XPS) analysis supports more than one valence state of B-site elements, which is accountable for the competition between ferromagnetic (FM) and AFM interactions in addition to the anti-site disorder in the system. The neutron measurement confirms the G-type AFM spin arrangement, accredited by the DFT calculation. The magnetic studies have correlated with the electronic structure, neutron study, and theoretical first principle calculations.

Item Type: Article
Subjects: Electronics
Depositing User: Bidhan Chaudhuri
Date Deposited: 29 Aug 2023 04:43
Last Modified: 29 Aug 2023 04:43

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