Orthorhombic Distortion at the Superconducting Transition in YBa2Cu3O7: Evidence for Anisotropic Pairing
P. M. Horn, D. T. Keane, G. A. Held, J. L. Jordan-Sweet, D. L. Kaiser, F. Holtzberg, T. M. Rice
DOI 10.1103/PhysRevLett.59.2772 · Physical Review Letters
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Abstract
We report the results of a high-resolution x-ray scattering study of the structure of YBa2Cu3O7 as a function of temperature. We find that there is an anomaly in the orthorhombic splitting, b−a, near the superconducting transition, whereas there is little or no anomaly in the unit-cell volume. Our results suggest that the superconducting wave function has a uniaxial anisotropy within the a−b plane.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91 | Pressure not reported | unknown |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91 | Pressure not reported | unknown |
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