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Type: Artigo de periódico
Title: Origin of the A(1g) and B-1g electronic Raman scattering peaks in the superconducting state of YBa2Cu3O7-delta
Author: Martinho, H
Martin, AA
Rettori, C
Lin, CT
Abstract: The electronic Raman scattering was investigated in optimally oxygen-doped YBa2Cu3O7-delta single crystals as well in crystals doped with nonmagnetic, Zn2+ and magnetic Ni2+ impurities. We found that the intensity of the A(1g) peak is impurity independent and its energy to T-c ratio is nearly constant (2Delta/k(B)T(c)similar to5). 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 , Venturini , and Zeyher and Greco.
Country: EUA
Editor: American Physical Soc
Citation: Physical Review B. American Physical Soc, v. 69, n. 18, 2004.
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.69.180501
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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