Microstructure of outgrowths on the surface of laser-ablated YBa2Cu3O7 thin films

The importance of CeO2 growth temperature and its post-annealing for the improvement of the microwave surface resistance of DyBa2Cu3Oz films

“…8. There were already reports available that the diffusion of Ba into the Al 2 O 3 substrate occurs, leading to the formation of BaAl 2 O 4 [21,22]. In line with this, we have observed lots of boulders on the surface view of AFM image ( Fig.…”