Effect of the nonmonotonic d-wave superconducting gap on the electronic Raman scattering of electron-doped cuprate superconductors

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.

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Electronic Raman scattering spectra in strongly correlated metals: cuprate superconductors and titanium oxides

Physica C Superconductivity ◽

10.1016/0921-4534(94)91798-1 ◽

1994 ◽

Vol 235-240 ◽

pp. 1147-1148

Author(s):

T. Katsufuji ◽

Y. Tokura

Keyword(s):

Raman Scattering ◽

Cuprate Superconductors ◽

Strongly Correlated ◽

Titanium Oxides ◽

Electronic Raman Scattering ◽

Scattering Spectra ◽

Raman Scattering Spectra

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d -wave superconducting gap observed in protect-annealed electron-doped cuprate superconductors Pr1.3−xLa0.7CexCuO4

Physical Review B ◽

10.1103/physrevb.100.054517 ◽

2019 ◽

Vol 100 (5) ◽

Cited By ~ 2

Author(s):

M. Horio ◽

K. Koshiishi ◽

S. Nakata ◽

K. Hagiwara ◽

Y. Ota ◽

...

Keyword(s):

Cuprate Superconductors ◽

Superconducting Gap ◽

D Wave

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Electronic Raman Scattering by Superconducting-Gap Excitations inNb3Sn andV3Si

Physical Review Letters ◽

10.1103/physrevlett.50.853 ◽

1983 ◽

Vol 50 (11) ◽

pp. 853-856 ◽

Cited By ~ 78

Author(s):

S. B. Dierker ◽

M. V. Klein ◽

G. W. Webb ◽

Z. Fisk

Keyword(s):

Raman Scattering ◽

Superconducting Gap ◽

Electronic Raman Scattering

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

Physica C Superconductivity ◽

10.1016/0921-4534(94)92170-9 ◽

1994 ◽

Vol 235-240 ◽

pp. 1897-1898 ◽

Cited By ~ 16

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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Electronic Raman scattering in a multiband model for cuprate superconductors

Physical Review B ◽

10.1103/physrevb.75.094508 ◽

2007 ◽

Vol 75 (9) ◽

Cited By ~ 22

Author(s):

Ivan Kupčić ◽

Slaven Barišić

Keyword(s):

Raman Scattering ◽

Cuprate Superconductors ◽

Electronic Raman Scattering ◽

Multiband Model

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Raman Scattering in Cuprate Superconductors

International Journal of Modern Physics B ◽

10.1142/s0217979297001088 ◽

1997 ◽

Vol 11 (18) ◽

pp. 2093-2118 ◽

Cited By ~ 30

Author(s):

Thomas Peter Devereaux ◽

Arno Paul Kampf

Keyword(s):

Low Temperature ◽

Raman Scattering ◽

Raman Spectra ◽

Cuprate Superconductors ◽

Energy Gap ◽

Low Frequency ◽

Temperature Behavior ◽

Doping Dependence ◽

Electronic Raman Scattering ◽

Effects Of Disorder

A theory for electronic Raman scattering in the cuprate superconductors is presented with a specific emphasis on the polarization dependence of the spectra which can infer the symmetry of the energy gap. Signatures of the effects of disorder on the low frequency and low temperature behavior of the Raman spectra for different symmetry channels provide detailed information about the magnitude and the phase of the energy gap. Properties of the theory for finite T will be discussed and compared to recent data concerning the doping dependence of the Raman spectra in cuprate superconductors, and remaining questions will be addressed.

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