TY - JOUR
T1 - Growth-Induced Strong Pinning Sites in Laser Ablated YBa2Cu3O7-δ Films with a Non-Random Distribution
AU - Huijbregtse, J. M.
AU - Klaassen, F. C.
AU - Van Der Geest, R. C.F.
AU - Dam, B.
AU - Griessen, R.
PY - 1999
Y1 - 1999
N2 - Recently, we showed that natural linear defects are the origin of the high critical currents in laser ablated YBa2Cu3O7-δ films 1. Combining wet-chemical etching and Atomic Force Microscopy, we find that these dislocations are created by island coalescence during growth. Consequently, the defect density can be reproducibly varied by manipulating the density of growth islands, which in turn depends on the substrate temperature. Interestingly, the radial defect distribution function approaches zero at small distances, indicating short range order. Therefore, we are now able to study vortex, matter in films with a tailored non-random distribution of natural strong pinning sites.
AB - Recently, we showed that natural linear defects are the origin of the high critical currents in laser ablated YBa2Cu3O7-δ films 1. Combining wet-chemical etching and Atomic Force Microscopy, we find that these dislocations are created by island coalescence during growth. Consequently, the defect density can be reproducibly varied by manipulating the density of growth islands, which in turn depends on the substrate temperature. Interestingly, the radial defect distribution function approaches zero at small distances, indicating short range order. Therefore, we are now able to study vortex, matter in films with a tailored non-random distribution of natural strong pinning sites.
UR - http://www.scopus.com/inward/record.url?scp=0043045800&partnerID=8YFLogxK
U2 - 10.1023/a:1022572606787
DO - 10.1023/a:1022572606787
M3 - Article
AN - SCOPUS:0043045800
SN - 0022-2291
VL - 117
SP - 663
EP - 667
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
IS - 3-4
ER -