Pseudopotential calculation of pressure dependence of superconducting state parameters of some binary alloys

2019 ◽  
Vol 561 ◽  
pp. 71-77
Author(s):  
Priyank Kumar ◽  
N.K. Bhatt ◽  
P.R. Vyas ◽  
V.B. Gohel
Keyword(s):  
Pressure Dependence ◽  
Superconducting State ◽  
Binary Alloys ◽  
Superconducting State Parameters

THE STUDY OF SUPERCONDUCTING STATE PARAMETERS OF in-BASED BINARY ALLOYS BY PSEUDOPOTENTIAL

2003 ◽  
Vol 17 (31n32) ◽  
pp. 6001-6017 ◽  
Author(s):  
P. N. GAJJAR ◽  
A. M. VORA ◽  
MINAL H. PATEL ◽  
A. R. JANI
Keyword(s):  
Superconducting State ◽  
Effective Interaction ◽  
Binary Alloys ◽  
Interaction Strength ◽  
Model Potential ◽  
Superconducting State Parameters ◽  
Vegard’S Law ◽  
Electron Phonon Coupling ◽  
Effective Valence ◽  
Alloy Atom

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.

SUPERCONDUCTING STATE PARAMETERS OF 4d-TRANSITION METALS BASED BINARY ALLOYS

2008 ◽  
Vol 22 (29) ◽  
pp. 2881-2892 ◽  
Author(s):  
ADITYA M. VORA
Keyword(s):  
Transition Metals ◽  
Superconducting State ◽  
Effective Interaction ◽  
Binary Alloys ◽  
Interaction Strength ◽  
Model Potential ◽  
Superconducting State Parameters ◽  
Electron Phonon Coupling ◽  
Alloy Atom ◽  
Potential Formalism

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.

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