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Electronic, structural, and magnetic properties of the half-metallic ferromagnetic quaternary Heusler compounds CoFeMnZ (Z - Al, Ga, Si, Ge).
- Source :
-
Physical Review B: Condensed Matter & Materials Physics . Dec2011, Vol. 84 Issue 22, p224416-1-224416-10. 10p. - Publication Year :
- 2011
-
Abstract
- The quaternary intermetallic Heusler compounds CoFeMnZ (Z = Al, Ga, Si, or Ge) with 1 : 1 : 1 : 1 stoichiometry were predicted to exhibit half-metallic ferromagnetism by ab initio electronic structure calculations. The compounds were synthesized using an arc-melting technique and the crystal structures were analyzed using x-ray powder diffraction. The electronic properties were investigated using hard x-ray photoelectron spectroscopy. The low-temperature magnetic moments, as determined from magnetization measurements, follow the Slater-Pauling rule, confirming the proposed high spin polarizations. All compounds have high Curie temperatures, allowing for applications at room temperature and above. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10980121
- Volume :
- 84
- Issue :
- 22
- Database :
- Academic Search Index
- Journal :
- Physical Review B: Condensed Matter & Materials Physics
- Publication Type :
- Academic Journal
- Accession number :
- 71823698
- Full Text :
- https://doi.org/10.1103/PhysRevB.84.224416