I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992
Pinning centers in epitaxial YBa2Cu3O 7- delta films have been investigated by scanning tunneling microscopy and transport studies. An astonishing surface morphology has been found which includes a high density approximately=109 cm-2 of screw dislocations and nanometer-sized holes. The density of screw dislocations can be controlled by varying the growth conditions of the YBa 2Cu3O7- delta films, allowing correlations between critical currents and screw dislocation density to be investigated. Films with higher screw dislocation densities are observed to have higher critical current densities and a slower drop of Jc(H).
I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992
B.A. Hutchins, T.N. Rhodin, et al.
Surface Science
Kigook Song, Robert D. Miller, et al.
Macromolecules
Shu-Jen Han, Dharmendar Reddy, et al.
ACS Nano