Ion beam sputtering and properties of YBaCuO superconducting thin films
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The microstructure and chemical composition of sputtered thin films are strongly correlated with the deposition conditions. In the present work, we report the investigation of the film composition by electron probe microanalysis and photoemission experimen ...
The authors report on the in-situ growth over large area of high-quality homogeneous YBa2Cu3O7-x films by single target ion beam sputtering. The 123 stoichiometry transfer to the substrates is obtained by using sufficiently low power ion beams and a grazin ...
In this brief letter Gauzzi & Pavuna (GP) comment on several statements published recently in the Journal of Materials Research by their former co-workers Kellett & James (KJ) in the paper entitled “Ion beam sputter deposition of YBa2Cu3O7-δ thin films”. G ...
We present preliminary results for thin films grown with a recently commissioned ion beam codeposition system designed for in situ growth and etching of YBCO films. The apparatus consists of a high-vacuum chamber (10-7 Torr) equipped with four Kaufmann ion ...
We report the formation of silicon oxide thin films obtained at room temperature by Ar+ bombardment of Si(100) wafers in partial oxygen atmosphere, The ion bombardment was done in the energy range E(b) - 100-1000 eV, with Ar partial pressure P-Ar = 1 x 10( ...
Spin-coated solid films of the gold-cluster compd. dodeca-(triphenylphosphine), hexa(chloro)pentapentacontagold Au55(PPh3)12Cl6 are irradiated with a focused 20-keV Ga+ focused-ion beam. Writing speeds on the substrate ranged from 50 up to 2000 mm/s. This ...
Spin-coated solid films of the gold-cluster compd. dodeca-(triphenylphosphine), hexa(chloro)pentapentacontagold Au55(PPh3)12Cl6 are irradiated with a focused 20-keV Ga+ focused-ion beam. Writing speeds on the substrate ranged from 50 up to 2000 mm/s. This ...
The biocompatibility of microcapsules made by the co-acervation of alginate and poly(l-lysine) (PLL) was enhanced by coating the surface of these microcapsules with a poly(ethylene glycol) (PEG)-based hydrogel. The hydrogel was formed by an interfacial pho ...
Photoemission techniques like electron spectroscopy for chemical analysis are the leading electronic probes in materials science-but their impact in the life sciences has been minimal. A critical problem is that the lateral resolution in ordinary photoemis ...
We report the formation of silicon oxide thin films at room temperature obtained by Ar+ ion bombardment of Si(100) wafers in partial oxygen atmosphere. Samples have been prepared at several ion beam energies (0 less than or equal to E(b) less than or equal ...