Acta Metallurgica Sinica (English Letters) ›› 2014, Vol. 27 ›› Issue (6): 1057-1062.DOI: 10.1007/s40195-014-0120-9

• Orginal Article • Previous Articles     Next Articles

First Principles Study of Structural Stability and Magnetic Property of Non-equilibrium Co-Mo Alloys

Li Shunning, Liu Baixin, Liu Jianbo()   

  1. Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
  • Received:2014-08-15 Revised:2014-08-15 Online:2014-08-15 Published:2015-07-23

Abstract:

First principles calculations are carried out to investigate the structural stability of several non-equilibrium intermetallic phases in the cobalt (Co)-Mo system using spin polarized projected augmented-wave potentials. It is revealed that the Co3Mo, CoMo, and CoMo3 alloys are energetically favored to be in D019, B11, and A15 structures, respectively, and that the magnetic moments of Co atoms would decrease rapidly with an increasing percentage of Mo content and would most probably disappear when the content of Mo is no less than 50 at%. Generally, the calculated results in the present work match well with the available experimental observations.

Key words: First principles calculation, Transition metals, Cobalt, Magnetic property, Electronic structure