Copper isotope effect in Raman scattering on superconducting YBa2Cu3O7−x
A. Mascarenhas, H. Katayama-Yoshida, J. Pankove, S. K. Deb
DOI 10.1103/PhysRevB.39.4699 · 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
Results of Raman scattering studies on the natural isotope superconductor YBa2Cu3O7−x and the heavy isotope superconductor YBa265Cu3O7−x are presented. The phonon at 148.6 cm−1 down-shifted by 1.8 cm−1 in YBa265Cu3O7−x whereas the position of the phonon at 112.5 cm−1 remains unchanged. This conclusively relates the phonon mode at 148.6 cm−1 to the vibration of Cu(2) atoms and suggests that the phonon at 112.5 cm−1 is independent of Cu vibrations.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92 | Pressure not reported | unknown |
| YBa265Cu3O7-x 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
Raman Scattering Study on Fully Oxygenated YBa2Cu3O7 Single Crystals: x−y Anisotropy in the Superconductivity-Induced Effects
similarity 0.96M. 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
Raman scattering from superconducting gap excitations in single-crystal YBa2Cu3O7−δ
similarity 0.95S. L. Cooper et al.
Source status unknown — claims are unverified
Single-Crystal Micro-Raman Spectroscopy of Phases in the Y-Ba-Cu-O Superconductor
similarity 0.95R. J. Hemley & H. K. Mao
Source status unknown — claims are unverified
Raman scattering from superconducting gap excitations in Tl2Ca2Ba2Cu3O10 single crystals
similarity 0.95M. C. Krantz et al.
Source status unknown — claims are unverified
Superconductivity-induced phonon anomalies in high-Tc superconductors: A Raman intensity study
similarity 0.95O. V. Misochko et al.
Source status unknown — claims are unverified