Thomas E. Karis, C. Mark Seymour, et al.
Rheologica Acta
We report polarized Raman scattering from YBa2Cu3O7-δ single crystals, which have Tc values between 92.5 K and 0 K, and compare our data to other reported single crystal Raman results. In samples with Tc < 90 K, three prominent lines are observed at 140, 340, and 456 cm-1 for (xx) polarization. We also observe lines in (zz) and (xz) polarization. In crystals with Tc = 92.5 K the spectra are weaker and more complex, although measurable. Using our results, a number of the reported differences are resolved, and the phonons are discussed. The change in Raman spectra with oxygen content is discussed in terms of a phase separation hypothesis, proposed in a recent theoretical paper. © 1988.
Thomas E. Karis, C. Mark Seymour, et al.
Rheologica Acta
Kafai Lai, Alan E. Rosenbluth, et al.
SPIE Advanced Lithography 2007
R.J. Gambino, N.R. Stemple, et al.
Journal of Physics and Chemistry of Solids
D.D. Awschalom, J.-M. Halbout
Journal of Magnetism and Magnetic Materials