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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/037/03/0563-0569

    • Keywords

       

      Diluted magnetic semiconductors; ferromagnetic, SnO2; ab-initio calculation; KKR–CPA; spintronic.

    • Abstract

       

      Structural and magnetic properties of Sn0.95Co0.05O2 nanocrystalline and diluted magnetic semiconductors have been investigated. This sample has been synthesized by co-precipitation route. Study of magnetization hysteresis loop measurements infer that the sample of Sn0.95Co0.05O2 nanoparticle shows a well-defined hysteresis loop at 300 K temperature, which reflects its ferromagnetic behaviour. We confirmed the room-temperature intrinsic ferromagnetic (FM) semiconductors by ab initio calculation, using the theory of the functional of density (DFT) by employing the method of Korringa–Kohn–Rostoker (KKR) as well as coherent potential approximation (CPA, explain the disorder effect) to systems. The ferromagnetic state energy was calculated and compared with the local-moment-disordered (LMD) state energy for local density approximation (LDA) and LDA–SIC approximation. Mechanism of hybridization and interaction between magnetic ions in Sn0.95Co0.05O2 is also investigated. To explain the origin of ferromagnetic behaviour, we give information about total and atoms projected density of state functions.

    • Author Affiliations

       

      O Mounkachi1 E Salmani2 M Boujnah2 H Labrim3 H El Moussaoui1 2 M Hamedoun1 A Benyoussef1 2 A El Kenz2 H Ez-Zahraouy2 R Masrour4 E K Hlil5

      1. The Institute for Nanomaterials and Nanotechnology, MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), Rabat, Morocco
      2. LMPHE (URAC 12), Departement of Physique, BP 1014, Faculty of Science, Mohammed V-Agdal University, Rabat, Morocco
      3. National Centre for Energy, Sciences and Nuclear Techniques, CNESTEN, Morocco
      4. Laboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, Safi, Morocco
      5. Institut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble Cedex 9, France

    • Dates

       
      Published
      May 2014
      Manuscript received
      17 October 2012
      Manuscript revised
      17 December 2012

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

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      Posted on July 25, 2019

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