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Superconducting gap structure in out-of-plane-disordered Bi 2 Sr 2 CaCu 2 O 8 + as studied by Raman spectroscopy
| Content Provider | Semantic Scholar |
|---|---|
| Author | Muraia, Norimitsu Masuia, T. Ishikadob, M. Ishidab, S. Eisakid, H. Uchidab, Seiichi Tajimaa, S. |
| Copyright Year | 2013 |
| Abstract | We measured electronic Raman spectra of nonstoichiometric Bi2+xSr2 xCaCu2O8+ with x=0.1, 0.3 and stoichiometric Bi2Sr2Y0.08Ca0.92Cu2O8+ and investigated the effect of out-of-plane disorder on the superconducting B1g Raman response. We observed that the B1g peak energy is enhanced in Y-substituted Bi2212, compared with that in nonstoichiometric Bi2212. By contrast, for nonstoichiometric Bi2212, the B1g peak energy remains constant, even if Tc is significantly suppressed by disorder. This anomalous behavior is discussed in terms of the interplay between the pseudogap and superconducting gap. © 2013 The Authors. Published by Elsevier B.V. Selection and/or peer-review under responsibility of ISS Program Committee. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://core.ac.uk/download/pdf/82299471.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
