Superconductivity-induced phonon anomalies in high-Tc superconductors: A Raman intensity study
O. V. Misochko, E. Ya. Sherman, N. Umesaki, K. Sakai, S. Nakashima
DOI 10.1103/PhysRevB.59.11495 · Physical Review B
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Abstract
We have studied an intensity increase of a number of Raman-active phonons below the superconducting transition temperature in YBa2Cu3O7−x, Bi2Sr2CaCu2O8+x, and Tl2Ba2CuO6+x crystals. It is shown that the effect depends on polarization, doping, and resonance conditions. Different scattering mechanisms that can be responsible for the effect are briefly discussed.
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. | 88 | Pressure not reported | unknown |
| 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 |
| Bi2Sr2CaCu2O8+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 83 | Pressure not reported | unknown |
| Tl2Ba2CuO6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 87 | Pressure not reported | onset |
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 57 | Pressure not reported | unknown |
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