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      https://www.ias.ac.in/article/fulltext/pram/076/04/0639-0656

    • Keywords

       

      Alloys; magnetism; spin-glasses.

    • Abstract

       

      We study the electronic structure and a mean-field phase analysis based on the pair–pair energies derived from first-principles electronic structure calculations of AuFe and NiMo alloys. We have used the tight-binding linear muffin-tin orbitals-based augmented space recursion (TB-LMTO-ASR) method to do so. We investigate different behaviours of the two alloy systems by mapping the problems onto equivalent Ising models and then discuss the magnetic phase diagrams using the calculated pair energies. All three phases: paramagnetic, random ferromagnetic and spin glass, have been studied.

    • Author Affiliations

       

      Prashant Singh1 Rudra Banerjee1 Moshiour Rahaman2 3 A V Ruban2 Biplab Sanyal4 Abhijit Mookerjee5

      1. Department of Materials Sciences, S.N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake City, Kolkata 700 098, India
      2. Applied Material Physics, Kungliga Tekniska Högskolan (Royal Institute of Technology), Valhallav 79, SE-100 44 Stockholm, Sweden
      3. S.N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake City, Kolkata 700 098, India
      4. Division of Materials Theory, Department of Physics and Materials Science, Angstromlaboratoriet, Uppsala University, Box 530, 75121 Uppsala, Sweden
      5. Advanced Materials Research Unit and Department of Materials Sciences, S.N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake City, Kolkata 700 098, India
    • Dates

       
  • Pramana – Journal of Physics | News

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