scholarly journals Prediction of f−wave pairing symmetry in YBa2Cu3O6+x cuprates

2020 ◽  
Vol 101 (21) ◽  
Author(s):  
Priyo Adhikary ◽  
Tanmoy Das
Keyword(s):  
2002 ◽  
Vol 16 (03) ◽  
pp. 453-461 ◽  
Author(s):  
GRZEGORZ LITAK

The effect of nonmagnetic disorder on the pairing amplitude is studied by means of a perturbation method. Using an extended one band Hubbard model with an intersite attraction we analyze various solutions of p-wave pairing symmetry and discuss their instability calculating fluctuations of order parameter. The model is applied to describe the effect of disorder in Sr2RuO4. The results shows that the real solution with line nodes can be favoured by disorder.


2002 ◽  
Vol 16 (20n22) ◽  
pp. 3175-3175
Author(s):  
A. BISWAS ◽  
P. FOURNIER ◽  
V. N. SMOLYANINOVA ◽  
H. BALCI ◽  
J. S. HIGGINS ◽  
...  

The properties of electron(n)-doped cuprate superconductors show significant deviations from those of their hold(p)-doped counterparts. Experiments prior to 2000 suggested an s-wave pairing symmetry as opposed to d-wave pairing symmetry in hole-doped cuprates. Recent experiments have suggested that n-doped cuprates have a d-wave pairing symmetry. However tunneling spectroscopy of these materials have not revealed a zero bias conductance peak (ZBCP), which is a classic signature of d-wave symmetry. We present the first tunneling spectroscopy data on n-doped Pr 2-x Ce x CuO 4 (PCCO) using point contact junctions which show a systematic evolution of the ZBCP. This method of junction fabrication is important as it allows the barrier strength between the normal and the superconducting electrodes to be varied. We show that this is essential to observing the ZBCP. The n-doped cuprates have a low Tc (~25 K ) and Hc2 (~10 T ). The low Hc2 enables us to obtain the normal state in PCCO at low temperatures. We have used this to probe the density of states in the normal state of PCCO. We observe an anomalous gap even in the normal state.1 This normal state gap (NSG) becomes smaller on the over-doped side. We discuss the behavior of this NSG in the context of the pseudogap which has been observed in hole-doped cuprates.


1975 ◽  
Vol 8 (7) ◽  
pp. 970-991 ◽  
Author(s):  
G Barton ◽  
M A Moore
Keyword(s):  

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Tanmoy Das ◽  
Jian-Xin Zhu ◽  
Matthias J. Graf
Keyword(s):  
S Wave ◽  

2019 ◽  
Vol 99 (9) ◽  
Author(s):  
Qing-Kun Tang ◽  
Lin Yang ◽  
Da Wang ◽  
Fu-Chun Zhang ◽  
Qiang-Hua Wang

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