Magnetic behaviour of AuFe and NiMo alloys

Pramana

Rudra Banerjee⁴  A V Ruban¹  Biplab Sanyal³  Prashant Singh⁴  Moshiour Rahaman2¹  Abhijit Mookerjee5² 

[1]Applied Material Physics, Kungliga Tekniska Högskolan (Royal Institute of Technology), Valhallav 79, SE-100 44 Stockholm, Sweden$$

[2]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$$

[3]Division of Materials Theory, Department of Physics and Materials Science, Angstromlaboratoriet, Uppsala University, Box 530, 75121 Uppsala, Sweden$$

[4]Department of Materials Sciences, S.N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake City, Kolkata 700 098, India$$

关键词: Alloys;    magnetism;    spin-glasses.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

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.

【 授权许可】

Unknown