scholarly journals Impropers-wave symmetry of the electronic pairing in iron-based superconductors by first-principles calculations

2013 ◽  
Vol 88 (15) ◽  
Author(s):  
M. Casula ◽  
S. Sorella
Keyword(s):  
First Principles ◽  
First Principles Calculations ◽  
Iron Based Superconductors ◽  
Wave Symmetry ◽  
Iron Based

First-principles calculations for anisotropy of iron-based superconductors

2010 ◽  
Vol 470 (20) ◽  
pp. 1066-1069 ◽  
Author(s):  
H. Nakamura ◽  
M. Machida ◽  
T. Koyama ◽  
N. Hamada
Keyword(s):  
First Principles ◽  
First Principles Calculations ◽  
Iron Based Superconductors ◽  
Iron Based

Elastic parameters of paramagnetic iron-based alloys from first-principles calculations

2012 ◽  
Vol 85 (5) ◽  
Author(s):  
Hualei Zhang ◽  
Marko P. J. Punkkinen ◽  
Börje Johansson ◽  
Levente Vitos
Keyword(s):  
First Principles ◽  
First Principles Calculations ◽  
Elastic Parameters ◽  
Iron Based

Superconducting Gap in s±-Wave Iron-Based Superconductors

SPIN ◽  
2018 ◽  
Vol 08 (02) ◽  
pp. 1850006
Author(s):  
B. Pradhan ◽  
S. K. Goi ◽  
R. N. Mishra
Keyword(s):  
Nearest Neighbor ◽  
Energy Gap ◽  
S Wave ◽  
Iron Based Superconductors ◽  
Model Study ◽  
Superconducting Energy Gap ◽  
Wave Symmetry ◽  
Iron Based ◽  
Double Time ◽  
Gap Parameter

We present a theoretical model study of superconductivity for iron-based high-[Formula: see text] superconductors in s[Formula: see text]-wave symmetry, considering two degenerate orbitals and the electron hopping up to the third nearest neighbor as a two-orbital model. The analytic expression for the temperature dependence of the superconducting order parameter is derived by Zubarev’s technique of double time single particle Green’s function method and solved self-consistently. The effect of inter orbital hopping on the superconducting energy gap parameter and electronic specific heat is studied.

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