Epitaxy and disorientations in the ferroelastic superconductor YBa2Cu3O7−x
V. K. Wadhawan
DOI 10.1103/PhysRevB.38.8936 · Physical Review B
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Abstract
Certain features of twinning reported recently in the literature for the Y-Ba-Cu-O superconductor are reinterpreted as being due to the presence of multiple disorientations in this ferroelastic material. The possibility of coherent and incoherent twin boundaries existing in the same crystal is pointed out. It is suggested that disorientations (and their local variations) could be providing an additional strain-relieving mechanism not incorporated so far in the spinodal-decomposition model of Khachaturyan et al.
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. | 95 | Pressure not reported | unknown |
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 159 | Pressure not reported | unknown |
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