Effect of Fluctuations in the Superconducting Order Parameter on the Tunneling Density of States

1969 ◽  
Vol 23 (7) ◽  
pp. 377-380 ◽  
Author(s):  
Roger W. Cohen ◽  
B. Abeles ◽  
C. R. Fuselier
Keyword(s):  
Density Of States ◽  
Order Parameter ◽  
Superconducting Order Parameter

scholarly journals Variation of the extended s-wave superconducting order parameter: From s-wave to g-wave

2015 ◽  
Vol 29 (27) ◽  
pp. 1550163
Author(s):  
H. Chung ◽  
N. Kim ◽  
H. Kim
Keyword(s):  
Fermi Surface ◽  
Density Of States ◽  
Power Law ◽  
Order Parameter ◽  
Superconducting Order Parameter ◽  
Text Line ◽  
Superconducting Properties ◽  
Detailed Structure ◽  
S Wave ◽  
Model Order

We investigate evolution of properties of an extended [Formula: see text]-wave superconductor, when the order parameter varies from an [Formula: see text]-wave to a [Formula: see text]-wave continuously, by using a model order parameter [Formula: see text]. The evolution of the gap amplitude, the density of states and the specific heat are mainly focused on. For [Formula: see text], due to the existence of a finite sized gap, the characteristic behaviors more or less follow those of the [Formula: see text]-wave. Sudden changes in the characteristic behaviors come out for [Formula: see text], due to appearances of nodes. For [Formula: see text], point nodes in the order parameter on the Fermi surface appear, while for [Formula: see text], line nodes appear. Although they are different kinds of nodes which would usually induce different power-law dependencies in superconducting properties, interestingly enough, they give rise to the same characteristic behavior. The detailed structure of the point nodes for [Formula: see text] is investigated, and it is explained why they lead to the same dependence as the line nodes.

scholarly journals Limits on the Superconducting Order Parameter in NdFeAsO1-xFy from Scanning SQUID Microscopy

2009 ◽  
Vol 78 (1) ◽  
pp. 013708 ◽  
Author(s):  
Clifford W. Hicks ◽  
Thomas M. Lippman ◽  
Martin E. Huber ◽  
Zhi-An Ren ◽  
Jie Yang ◽  
...  
Keyword(s):  
Order Parameter ◽  
Superconducting Order Parameter ◽  
Scanning Squid ◽  
Scanning Squid Microscopy
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