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

2018 ◽  
Vol 133 (1) ◽  
pp. 86-93 ◽  
Author(s):  
H.P. Dave ◽  
R.C. Malan ◽  
A.M. Vora
2008 ◽  
Vol 22 (29) ◽  
pp. 2881-2892 ◽  
Author(s):  
ADITYA M. VORA

The theoretical study of the superconducting state parameters (SSP) viz. electron–phonon coupling strength λ, Coulomb pseudopotential μ*, transition temperature TC, isotope effect exponent α and effective interaction strength NoV of 4d-transition metals based binary alloys have been made extensively in the present work using a model potential formalism for the first time. In the present computation, the use of pseudo-alloy-atom model (PAA) is proposed and found successful. A considerable influence of various exchange and correlation functions on λ and μ* is found from the present study. The present results of the SSP are found in qualitative agreement with the available experimental data wherever they exist.


2003 ◽  
Vol 17 (31n32) ◽  
pp. 6001-6017 ◽  
Author(s):  
P. N. GAJJAR ◽  
A. M. VORA ◽  
MINAL H. PATEL ◽  
A. R. JANI

The study of the superconducting state parameters (SSP) viz. electron–phonon coupling strength λ, Coulomb pseudopotential μ*, transition temperature T C , isotope effect exponent α and effective interaction strength N0V of In-based binary alloys In 1-x Na x, In 1-x Mg x, In 1-x Zn x, In 1-x Tl x, In 1-x Sn x, In 1-x Pb x and In 1-x Bi x have been made extensively in the present work using a model potential. To explain electron–ion interaction pseudo-alloy-atom (PAA) model is applied for the first time instead of Vegard's Law. A considerable influence of various exchange and correlation functions on λ and μ* is found from the present study. It is also concluded that T C strongly depends on the value of the effective valence Z* of binary alloys.


Pramana ◽  
2002 ◽  
Vol 58 (5-6) ◽  
pp. 849-853 ◽  
Author(s):  
A M Vora ◽  
Minal H Patel ◽  
P N Gajjar ◽  
A R Jani

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