Abstract
The microstructure of metal-organic depositedYBa2Cu3O7−δ with dysprosium (Dy) additions has been investigated by transmission electron microscopy(TEM). Dy additions which increase the density of normal-state nanoparticles in theYBCO have been demonstrated to enhance the critical current densities in moderatemagnetic fields. The influence of nanoparticles, stacking faults and other planar defects onflux pinning is discussed. We observed a high density of nanoparticles in the size range of10–50 nm, which may act as flux pinning centres to enhance the critical current density ofthe material. Stacking faults and planar defects are observed which may also beeffective flux pinning centres in YBCO samples with and without Dy addition.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
