On the origin of the A$_{1g}$ and B$_{1g}$ electronic Raman scattering peaks in the superconducting state of YBa$_{2}$Cu$_{3}$O$_{7-\delta}$

The electronic Raman scattering has been investigated in optimally oxygen doped YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ single crystals as well as in crystals with non-magnetic, Zn, and magnetic, Ni, impurities. We found that the intensity of the A $_{1 g}$ peak is impurity independent and their energy to $T_{c}$ ratio is almost constant ( $2 Δ / k_{B} T_{c} \sim 5$ ). Moreover, the signal at the B $_{1 g}$ channel is completely smeared out when non-magnetic Zn impurities are present. These results are qualitatively interpreted in terms of the Zeyher and Greco’s theory that relates the electronic Raman scattering in the A $_{1 g}$ and B $_{1 g}$ channels to $d$ -CDW and superconducting order parameters fluctuations, respectively.

On the origin of the A $_{1 g}$ and B $_{1 g}$ electronic Raman scattering peaks in the superconducting state of YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$

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On the origin of the A $_{1 g}$ and B $_{1 g}$ electronic Raman scattering peaks in the superconducting state of YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$

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On the origin of the A1g1g​ and B1g1g​ electronic Raman scattering peaks in the superconducting state of YBa22​Cu33​O7−δ7−δ​

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On the origin of the A1g1g​ and B1g1g​ electronic Raman scattering peaks in the superconducting state of YBa22​Cu33​O7−δ7−δ​

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On the origin of the A $_{1 g}$ and B $_{1 g}$ electronic Raman scattering peaks in the superconducting state of YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$

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On the origin of the A $_{1 g}$ and B $_{1 g}$ electronic Raman scattering peaks in the superconducting state of YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$

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