Raman study of lattice modes in the high–critical-temperature superconductor Y-Ba-Cu-O

H. Rosen; E. M. Engler; T. C. Strand; V. Y. Lee; D. Bethune

doi:10.1103/PhysRevB.36.726

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Raman study of lattice modes in the high–critical-temperature superconductor Y-Ba-Cu-O

H. Rosen, E. M. Engler, T. C. Strand, V. Y. Lee, D. Bethune

DOI 10.1103/PhysRevB.36.726 · Physical Review B

T1

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Abstract

Raman spectra of high-temperature superconducting materials composed of Y-Ba-Cu-O compounds are reported for the first time. These spectra show numerous lattice modes which are attributed both to the superconducting phase YBa2Cu3Ox and also to the impurity phases of BaCuO2 and Y2BaCuO5. Raman spectroscopy is shown to be a sensitive probe of both the phonon structure of the superconductor and of the impurity phases in the material.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	90	Pressure not reported	onset
YBa2Cu3O Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	90	Pressure not reported	onset