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|Type:||Artigo de periódico|
|Title:||Origin Of The A1g And B1g Electronic Raman Scattering Peaks In The Superconducting State Of Yba2cu3o 7-δ|
|Abstract:||The electronic Raman scattering was investigated in optimally oxygen-doped YBa2CU3O7-δ single crystals as well in crystals doped with nonmagnetic, Zn2+ and magnetic Ni2+ impurities. We found that the intensity of the A1g peak is impurity independent and its energy to Tc ratio is nearly constant (2Δ/kBTc∼5). Moreover, the signal at the B 1g channel is completely smeared out when nonmagnetic Zn2+ impurities are present. These results are discussed in terms of the current models of Devereaux et al., Venturini et al., and Zeyher and Greco.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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