Twins and oriented domains in the orthorhombic superconductor YBa2Cu3O7±ε
M. Hervieu, B. Domenges, C. Michel, G. Heger, J. Provost, B. Raveau
DOI 10.1103/PhysRevB.36.3920 · Physical Review B
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Abstract
The investigation of the orthorhombic superconductor YBa2Cu3O7±ε by high-resolution electron microscopy (HREM) shows the existence of two sorts of domains: twinned domains and oriented domains forming slices perpendicular to the c axis. The interpretation of these domains and of their boundaries is given, based on the simulated HREM images previously made. It is shown that the orientation of the (CuO2)∞ planes formed by the CuO4 square planar groups plays an important role. A phenomenon of misorientation of those domains is also observed and interpreted.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-ε Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92 | Pressure not reported | unknown |
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