Raman study of the effect of oxygen stoichiometry on the phonon spectrum of the high-Tc superconductor YBa2Cu3Ox
R. M. Macfarlane, H. J. Rosen, E. M. Engler, R. D. Jacowitz, V. Y. Lee
DOI 10.1103/PhysRevB.38.284 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We have carried out a study of the effect of oxygen stoichiometry on the k=0 phonon spectrum of the high-Tc superconductor YBa2Cu3Ox using Raman spectroscopy. Polycrystalline samples were prepared with oxygen content x varying from 7.0, where the material is orthorhombic and superconducting, to 6.0, where it is tetragonal and semiconducting. The frequency and intensity of the k=0 phonon modes of Ag symmetry at 151, 340, 435, and 502 cm−1 (for x=7) were studied as a function of oxygen content.
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. | 92 | Pressure not reported | unknown |
Similar papers
Single-Crystal Micro-Raman Spectroscopy of Phases in the Y-Ba-Cu-O Superconductor
similarity 0.96R. J. Hemley & H. K. Mao
Source status unknown — claims are unverified
Raman study of lattice modes in the high–critical-temperature superconductor Y-Ba-Cu-O
similarity 0.96H. Rosen et al.
Source status unknown — claims are unverified
Raman Scattering Study on Fully Oxygenated YBa2Cu3O7 Single Crystals: x−y Anisotropy in the Superconductivity-Induced Effects
similarity 0.95M. F. Limonov et al.
Source status unknown — claims are unverified
Systematic Raman study of effects of rare-earth substitution on the lattice modes of high-Tc superconductors
similarity 0.95H. J. Rosen et al.
Source status unknown — claims are unverified
Screened Raman response in two-dimensional dx2−y2-wave superconductors: Relative intensities in different symmetry channels
similarity 0.95Fabian Wenger & Mikael Käll
Source status unknown — claims are unverified
High-frequency Raman scattering in the superconducting and semiconducting phases of Ba2YCu3Ox-type single crystals and ceramics
similarity 0.94D. M. Krol et al.
Source status unknown — claims are unverified