Magnetic order in the AuMn alloy derivatives Au₂(Mn,Z)₂where Z is Al, Cu, Ga, In or Zn

Magnetic properties of Heusler alloys Ru2MnZ (Z=Si, Ge, Sn and Sb)

“…Exceptional alloys are Pd 2 MnZ (Z = Al and In) [20][21][22], Pt 2 MnZ (Z = Al and Ga) [23], Rh 2 MnAl [24], Ir 2 MnZ (Z = Al and Ga) [24,25] and Au 2 MnZ (Z = Ga and In) [26], where these alloys are all antiferromagnets. Traditional idea for the alignment of the magnetic moments of different Mn atoms is the indirect exchange mechanism (the s-d exchange mechanism) as mentioned above.…”

Atomic Disordering and Electron Band Structure in the Heusler Alloy CoTiSb

“…Each type is defined in the general form by means of a matrix of occupation numbers for four fcc sublattices ( , , , ), which mutually penetrate one another ( Fig. 1) [3]:…”

“…Here, for example, the quantity means the probability of population (the occupation number) of the -sublattice by component B, and the site population in the -sublattice by vacancies V. In our specific case of CoTiSb alloy, the components are vacancies (component V), Co (component A), Ti (component B), and Sb (component C). Three structural types (phases, modifications) defined by the matrices of occupation numbers [3] were chosen for calcula- Fig. 1.…”

“…1. Unit cell formed by four fcc sublattices ( , , , ) that mutually penetrate one another [3] tions, namely:…”

“…)︀ , forty-two independent structural types can be formed in the cubic modification of half-Hausler alloys. Mathematically, they are defined by the corresponding matrices of population parameters (see below) for the sites in the crystal sublattices under discussion [3]. According to the conclusions of work [3], information about those matrices can be obtained from diffraction measurements.…”