Raman scattering from the Bi2Sr2CaCu3O8+y superconductor

L. A. Farrow; L. H. Greene; J. M. Tarascon; P. A. Morris; W. A. Bonner; G. W. Hull

doi:10.1103/PhysRevB.38.752

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Raman scattering from the Bi2Sr2CaCu3O8+y superconductor

L. A. Farrow, L. H. Greene, J. M. Tarascon, P. A. Morris, W. A. Bonner, G. W. Hull

DOI 10.1103/PhysRevB.38.752 · Physical Review B

T1

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Abstract

The Raman spectrum from 10 to 550 cm−1 has been obtained from the Bi2Sr2CaCu3O8+y superconductor. Modes similar to those exhibited by YBa2Cu3O7−y are found, as expected from similarities in the crystal structures of the two materials. In addition, several strong lowfrequency modes are present, suggestive of a material with loosely coupled substructures consistent with the structural x-ray analysis of Bi2Sr2CaCu3O8+y. Meissner analysis shows that the sample used exhibits bulk superconductivity.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2O8+y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	80	Pressure not reported	unknown
Bi2Sr2CaCu2O8+y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	85	Pressure not reported	unknown
YBa2Cu3O7-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown