Possible twin-boundary effect upon the properties of high-Tc superconductors
Is Version Of
We have studied the field at which superconductivity nucleates in grain-aligned samples of Y1Ba2Cu3O7-δ very close to the transition temperature Tc. For the field parallel to the c axis and for temperatures within 2 K of Tc, the nucleation field is found to vary as (1-T/Tc)1/2. The data suggest that superconductivity localized near twin boundaries may exist at temperatures close to Tc. .AE
This is an article from Physical Review B; 37 (1988): 2334-2338, doi: 10.1103/PhysRevB.37.2334. Posted with permission.