The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

 
       
         
    STUDIA PHYSICA - Issue no. 2 / 2009  
         
  Article:   MAGNETIC STATES IN Co RICH FCC CoMn ALLOYS.

Authors:  V. CRISAN.
 
       
         
  Abstract:  We report on the results of the ab initio calculations on the Co0.95Mn0.05 alloy in chemically disordered state. Calculations are carried out within density-functional theory and the coherent potential approximation (CPA). We show that the magnetic coupling between the Co and Mn atoms are of ferromagnetic (FM) type for large lattice parameters while for lower ones are antiferromagnetic (AF). The coupling between Mn atoms is found to be FM for all lattice parameters. No chemically ordering is seen, all sites in the fcc unit cell being magnetically equivalent. The results are discussed in the framework of the disordered local moment (DLM) model.

Keywords: alloys, transition-metal KKR, CPA, DLM
 
         
     
         
         
      Back to previous page