2003/05/07 by I. Galanakis · 180 citations
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Advanced Welding Techniques Analysis #Boron and Carbon Nanomaterials Research #Chemistry #Condensed matter physics #Crystallography #Electron #Heusler alloys: electronic and magnetic properties #Limiting #Magnetic moment #Materials science #Metal #Metallicity #Metallurgy #Physics #Quantum mechanics #Quaternary #Spin (aerodynamics) #Thermodynamics #Valence (chemistry) #Valence electron #cond-mat.mtrl-sci
paper · pdf · doi:10.1088/0953-8984/16/18/010
published in Journal of Physics Condensed Matter 16(18), 3089-3096 (IOP Publishing) · 4 pages, 3 figures, 2 Tables
arxiv created 2003/05/07 · openalex publication_date 2004/04/24 · arxiv updated 2015/06/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
I report systematic first-principles calculations of the quaternary Heusler alloys, e.g. Co 2 [Cr 1− x Mn x ]Al, Co 2 Mn[Al 1− x Sn x ] and [Fe 1− x Co x ] 2 MnAl. I show that these alloys are also half-ferromagnets when the normal Heusler compounds corresponding to concentration values of zero and unity are half-metals. Moreover, the total spin moment M t in μ B scales linearly with the total number of valence electrons Z t (and thus with the concentration x ) following the relation M t = Z t −24, independently of the origin of the extra valence electrons, confirming the Slater–Pauling behaviour of the normal Heusler alloys. These results pave the way for experimentalists searching for new half-metallic alloys.