PT Journal AU Siegel, M Ilin, K Kemmler, M Bothner, D Kleiner, R Koelle, D TI Suppression of dissipation in Nb thin films with triangular antidot arrays by random removal of pinning sites SO Physical review / B PY 2009 BP 184509/1 EP 6 VL 79 IS 18 DI 10.1103/PhysRevB.79.184509 LA english ER