scholarly journals Fallacies on pairing symmetry and intrinsic electronic Raman spectrum in high-Tc cuprate superconductors

2020 ◽  
Vol 34 (19n20) ◽  
pp. 2040001
Author(s):  
Hyun-Tak Kim
Keyword(s):  
Raman Spectrum ◽  
Critical Temperature ◽  
Raman Scattering ◽  
Cuprate Superconductors ◽  
Nonlinear Behavior ◽  
Pairing Symmetry ◽  
Superconducting Gap ◽  
High Tc ◽  
Electronic Raman Scattering ◽  
Text Mode

Certain significant fallacies are involved in discussions of the high-[Formula: see text] mechanism unsolved for over 30 years in cuprate superconductors. These fallacies are explored with the aim of unraveling this mechanism. Moreover, using polarized electronic Raman scattering in inhomogeneous underdoped cuprate superconductors, the intrinsic nonlinear Raman spectrum is obtained by subtracting the pseudogap characteristic of a nonlinear from the linear Raman spectrum measured in the [Formula: see text] mode of the node area below the critical temperature. The intrinsic nonlinear behavior implies the existence of the nodal superconducting gap denying [Formula: see text]-wave pairing symmetry. An origin of the nodal superconducting gap is discussed.

Fractional Quantized Vortices as Direct Evidence of dx2-y2-Wave Pairing Symmetry up to Critical Temperature in High-Tc Cuprate Superconductors

2002 ◽  
Vol 41 (Part 2, No. 7A) ◽  
pp. L739-L741 ◽  
Author(s):  
Akira Sugimoto ◽  
Takashi Miyake ◽  
Tomohiro Takeda ◽  
Ienari Iguchi ◽  
Satoshi Kashiwaya
Keyword(s):  
Critical Temperature ◽  
Cuprate Superconductors ◽  
Direct Evidence ◽  
Pairing Symmetry ◽  
Quantized Vortices ◽  
High Tc ◽  
Wave Pairing

scholarly journals EFFECTS OF c-AXIS HOPPING IN THE INTERLAYER TUNNELING MODEL OF HIGH-Tc LAYERED CUPRATES

1999 ◽  
Vol 13 (13) ◽  
pp. 1619-1632
Author(s):  
BIPLAB CHATTOPADHYAY ◽  
A. N. DAS
Keyword(s):  
Experimental Data ◽  
Transition Temperature ◽  
Cuprate Superconductors ◽  
Interlayer Coupling ◽  
Superconducting Gap ◽  
Tunneling Model ◽  
High Tc ◽  
Optimal Doping ◽  
Pair Tunneling ◽  
Layered Cuprates

We consider the interlayer pair-tunneling model for layered cuprates, including an effective single particle hopping along the c-axis. A phenomenological suppression of the c-axis hopping matrix element, by the pseudogap in cuprate superconductors, is incorporated. At optimal doping, quantities characteristic to the superconducting state, such as the transition temperature and the superconducting gap are calculated. Results from our calculations are consistent with the experimental observations with the noteworthy point that, the superconducting gap as a function of temperature shows excellent match to the experimental data. Predictions within the model, regarding T c variation with interlayer coupling, are natural outcomes which could be tested further.

Electronic Raman Scattering by Superconducting-Gap Excitations inNb3Sn andV3Si

1983 ◽  
Vol 50 (11) ◽  
pp. 853-856 ◽  
Author(s):  
S. B. Dierker ◽  
M. V. Klein ◽  
G. W. Webb ◽  
Z. Fisk
Keyword(s):  
Raman Scattering ◽  
Superconducting Gap ◽  
Electronic Raman Scattering

scholarly journals Electronic Raman scattering of Tl-2223 and the symmetry of the superconducting gap

1994 ◽  
Vol 235-240 ◽  
pp. 1897-1898 ◽  
Author(s):  
A. Hoffmann ◽  
P. Lemmens ◽  
G. Güntherodt ◽  
V. Thomas ◽  
K. Winzer
Keyword(s):  
Raman Scattering ◽  
Superconducting Gap ◽  
Electronic Raman Scattering
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