De-twinning of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub>: Elastic interpretation and mechanism

D. Favrot, M. Déchamps, A. Revcolevschi

Philosophical Magazine Letters · 1991 · 17 citations · 8 references

Concepts

Abstract

Abstract Orthorhombic YBa2Cu3O7-δ superconductor crystals have a twinned structure which can be experimentally de-twinned by applying an external mechanical stress. The analysis of de-twinning in terms of elasticity makes it possible to estimate the theoretical de-twinning stress and to propose a de-twinning mechanism based on a cooperative translation of oxygen sub-lattice layers.

References

8