We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Investigations of the Structural, Electronic, Magnetic, and Half-Metallic Behavior of CoMnZ (Z = Al, Ge, Si, Ga) Full-Heusler Compounds.
- Authors
Dahmane, F.; Doumi, B.; Mogulkoc, Y.; Tadjer, A.; Prakash, Deo; Verma, K.; Varshney, Dinesh; Ghebouli, M.; Omran, S.; Khenata, R.
- Abstract
The structural, electronic, and magnetic properties of the full-Heusler compounds CoMnZ ( Z = Al, Ge, Si, Ga) have been investigated using the first-principles calculations with the full-potential linear-augmented plane wave method within the density functional theory. The electronic structures and magnetic properties of the CoMnZ ( Z = Al, Ge, Si, Ga) compounds with both HgCuTi- and CuMnAl-type structures are studied. It is found that the calculated lattice constants are in good agreement with the theoretical values. Using the general gradient approximation, we observe that the CuMnAl-type structure is more stable than the HgCuTi type. The CoMnZ ( Z = Al, Ge, Si, Ga) compounds were half-metallic ferromagnets in the CuMnAl-type structure. The total magnetic moments of the CoMnZ ( Z = Al, Ge, Si, Ga) compounds in the CuMnAl-type structure were 4, 5, 5, and 4 μ respectively, which is in agreement with the Slater-Pauling rule, m = N−24 Furthermore, the origin for the appearance of the half-metallic band gap in the CoMnZ compound was also discussed which shows them to be promising materials for possible spintronics applications.
- Subjects
COBALT compounds; MAGNETIC properties of transition metal compounds; HEUSLER alloys; ELECTRONIC structure; DENSITY functional theory; MAGNETIC moments
- Publication
Journal of Superconductivity & Novel Magnetism, 2016, Vol 29, Issue 3, p809
- ISSN
1557-1939
- Publication type
Article
- DOI
10.1007/s10948-015-3357-2