Electronic theory of short‐range order in alloys using the pseudopotential approximation and its comparison with experiments

Light‐yield improvement trends in mixed scintillation crystals

“…In particular, domains enriched by one of the components can be formed. By varying the ratio ( R a / R b ) we change the size of spatial inhomogeneities of SRO structure, as was demonstrated in metal alloys . It was shown that fluctuations of composition of metal alloys in the above‐stated systems led to modulation of crystal potential and a decrease of electron diffusion length, providing the change of some physical characteristics, for example, an electric resistance increase.…”

Effect of vanadium on atomic ordering characteristics and anti-phase boundary energies of B2–FeCo alloys

“…The problem is attributed to the fact that the form factor of the pseudopotential for transition metals must contain terms responsible for the d-resonance effect. The use of pseudopotential method for the calculation of the ordering energies and/or interatomic interaction potentials in transition metal alloy systems have already been discussed in detail elsewhere [29][30][31][32][34][35][36]. The non-local bare pseudopotential form factors, proposed by Animalu [37] in which the d-resonance effect has been partly taken into account, are used in quasi-on the Fermi sphere approximations and have been screened using a modified dielectric constant.…”

Coherent Potential Approximation of the Relationship between Short‐Range Order and the Position of the Fermi Level on the State Density Curves

“…If E , is known, the main task of this paper can be solved, namely the equilibrium value of can be determined for various systems of the transition elements from the equat,ion (4) where k, is the Boltzmann constant and T the temperature. To have a closed system of (1) to (4) the density of electron states of the alloy has to be calculated.…”

“…The increment of the electrostatic term in E , has been analysed fairly thoroughly [4], thus in the present work the expression given in [4] for E will be used, as limited to the first coordination sphere 2 sin (qR)…”