Residual Resistivity of Dilute Alloys

Abstract

The residual resistivity for 156 dilute alloys of 19 hosts of different groups of the periodic table has been studied on the basis of the single parametric model potential formalism. Ashcroft's empty core model (EMC) potential is explored for the first time with five different local field correction functions, viz, Hartree (H), Taylor (T), Ichimaru–Utsumi (IU), Farid et al. (F), and Sarkar et al. (S) to investigate the effect of the exchange and correlation on the aforesaid properties. The comparison of the presently computed outcomes with the available theoretical and experimental data is highly encouraging. The investigation of residual resistivity is found to be quite sensitive to the selection of local field correction function, showing a significant variation with the change in the function.

Phonon dynamics of glassy copper alloys

“…The energy wave number characteristics appearing in the Eq. (2) is written as [1][2][3][4][5][6][7][8][9]23]…”

“…Theoretical understanding of these structures has been difficult to achieve because of the lack of translational symmetry, both for disordered crystalline alloys and amorphous or glassy alloys. The possible application of transition metal alloys is in microelectronics or as thin-film coating [1][2][3][4][5][6][7][8][9].…”

“…The phonon dynamics of Cu 60 W 40 , Cu 33 Y 67 and Cu 43 Ti 57 metallic glasses is not reported previously using model potential formalism. Recently, we have been reported the phonon properties of some metallic glasses using model potential formalism [1][2][3][4][5][6][7][8][9].…”

“…Cu 57 Zr 43 , Cu 60 W 40 , Cu 33 Y 67 , Cu 43 Ti 57 and Cu 66 Ti 34 using well recognized model potential [1][2][3][4][5][6][7][8][9] for the first time. The thermodynamics and elastic properties, such as longitudinal sound velocity υ L , transverse sound velocity υ T , isothermal bulk modulus B T , modulus of rigidity G, Poisson's ratio , Young's modulus Y and Debye temperature D , are computed from the elastic limit of the dispersion relation.…”

“…The phenomenological theories of Hubbard-Beeby (HB) [19], Takeno-Goda (TG) [20,21] and Bhatia-Singh (BS) [11,22] are employed to generate the PDCs. The most important ingredient of the PDC is the pair potential computed theoretically in Wills-Harrison (WH) [23] form from the well recognized model potential [1][2][3][4][5][6][7][8][9].…”