Resonance effects in Raman scattering in YBa2Cu3O7

15 July 1989

journal article
letter
Published by AIP Publishing in Journal of Applied Physics

Vol. 66 (2) , 977-979
https://doi.org/10.1063/1.344451

Abstract

Raman spectra of YBa₂ Cu₃ O₇ excited by different lines of Ar and Kr lasers have been studied. It was found that significant changes in relative intensity of phonon lines occurred in the spectra when the excitation frequency was shifted from the red into the blue region of the spectrum. The enhancement of high‐frequency phonons, which involves stretching of CuO bonds, was attributed to resonance with an interband transition in YBa₂ Cu₃ O₇ .

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