Superconducting state parameters of bulk amorphous alloys

Abstract

Well recognized empty core (EMC) pseudopotential of Ashcroft is used to investigate the superconducting state parameters viz; electron-phonon coupling strength , Coulomb pseudopotential  * , transition temperature TC, isotope effect exponent  and effective interaction strength NOV of some (Ni33Zr67)

Screening Dependence Study of Superconducting State Parameters of 4d- and 5d-Transition Metals Based Binary Alloys

“…To determine the input parameters and various constants, we use PAA model [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] in the present computation for transition metals based binary alloys (A 1−x B x ). Here, x is concentration factor of the second metallic component of the alloys.…”

“…The details of all the local field corrections are discussed in their respective papers [32][33][34][35][36]. After estimating λ and µ * , the superconducting transition temperature T C and isotope effect exponent α are investigated from the McMillan formula [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]:…”

“…In earlier communications [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17], we have intended the superconducting state parameters (SSP) electronphonon coupling strength λ and Coulomb pseudopotential µ * , and hence the transition temperature T C , the isotope effect exponent α and effective interaction strength N 0 V using various forms of screening with model potential formalism for metals, alloys and metallic glasses. Earlier, we have reported screening dependence study of superconducting state parameters of some 3d-transition metals based binary alloys using model potential approach [17].…”

Structural and mass transport properties of liquid ytterbium in the temperature range 1123 K–1473 K

“…Complete details of the mathematical formalism can be found elsewhere, e.g., Ref. [54]. The dynamical matrix can now be solved to determine the phonon frequency using the effective pair interaction, Eq.…”