wave superconductivity: Analysis of the electronic Raman data of and other cuprates

Nemetschek, R.; Hackl, R.; Opel, Matthias; Philipp, R.; Béal-Monod, M. T.; Bieri, J.B.; Kawai, Maki; Erb, A.; Wałker, E.

doi:10.1007/s100510050471

Cited by 29 publications

(47 citation statements)

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“…3(k,l)) reflecting a difference in c(w) between the two compounds at w=340 cm -1 . Our data agree well with the theoretically calculated Raman response for the d+s wave superconductor [17]. Therefore, we can conclude that d ↔ d+s crossover of the superconducting order parameter with overdoping is a common feature of HTSC.…”

Section: Resultssupporting

confidence: 90%

Superconductivity‐induced phononic effects in high‐temperature superconductors: Raman study

Лимонов

Lee

Masui

et al. 2004

phys. stat. sol. (c)

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Section: Resultssupporting

confidence: 90%

Superconductivity‐induced phononic effects in high‐temperature superconductors: Raman study

Лимонов

Lee

Masui

et al. 2004

phys. stat. sol. (c)

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“…This was proposed by Nemetschek et al [1]. When s wave component is mixing into d wave, the order parameter is given by…”

Section: Resultsmentioning

confidence: 99%

“…The change of peak energy in B 1g polarization did not scale with the change of T c . These observations indicate s wave mixing into d wave symmetry in the overdoped regime [1]. However, the symmetry of order parameter is generally affected by the symmetry of crystal structure.…”

Section: Introductionmentioning

confidence: 91%

Superconducting gap of overdoped Tl2Ba2CuO6+δ observed by Raman scattering

Nishikawa¹,

Masui²,

Tajima³

et al. 2008

Journal of Physics and Chemistry of Solids

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We report Raman scattering spectra for single crystals of overdoped Tl 2 Ba 2 CuO 6+δ (Tl 2201) at low temperatures. It was observed that the pair breaking peaks in A 1g and B 1g spectra radically shift to lower energy with carrier doping. We interpret it as s wave component mixing into d wave, although the crystal structure is tetragonal. Since similar phenomena were observed also in YBa 2 Cu 3 O y and Bi 2 Sr 2 CaCu 2 O z , we conclude that s wave mixing is a common property for overdoped high T c superconductors.

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“…Spectra from samples other than those shown in Fig. 1 are taken from our published work 10,14,37,53 . For clarity, the phonons have been subtracted.…”

Section: Discussionmentioning

confidence: 99%

Pair breaking versus symmetry breaking: Origin of the Raman modes in superconducting cuprates

et al. 2011

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We performed Raman scattering experiments on superconductivity-induced features in Bi2Sr2(Ca1−xYx)Cu2O 8+δ (Bi-2212), YBa2Cu3O6+x (Y-123), and Tl2Ba2CuO 6+δ (Tl-2201) single crystals. The results in combination with earlier ones enable us to systematically analyze the spectral features in the doping range 0.07 ≤ p ≤ 0.24. In B2g (xy) symmetry we find universal spectra and the maximal gap energy ∆0 to scale with the superconducting transition temperature Tc. The B1g (x 2 − y 2 ) spectra in all three compounds show an anomalous increase of the intensity toward overdoping. The energy scale of the corresponding peak is neither related to the pairing energy nor to the pseudogap, but possibly stems from a symmetry breaking transition at the onset point of superconductivity at psc2 ≃ 0.27.

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wave superconductivity: Analysis of the electronic Raman data of and other cuprates

Cited by 29 publications

References 1 publication

Superconductivity‐induced phononic effects in high‐temperature superconductors: Raman study

Superconductivity‐induced phononic effects in high‐temperature superconductors: Raman study

Superconducting gap of overdoped Tl2Ba2CuO6+δ observed by Raman scattering

Pair breaking versus symmetry breaking: Origin of the Raman modes in superconducting cuprates

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