Post Deposition Heat Treatment Effects on Ceramic Superconducting Films Produced by Infrared Nd:YAG Pulsed Laser Deposition
نویسندگان
چکیده
منابع مشابه
Effects of laser wavelength and fluence on the growth of ZnO thin films by pulsed laser deposition
Transparent, electrically conductive and c-axis oriented ZnO thin films have been grown by the pulsed laser deposition (PLD) technique on silicon and Coming glass substrates employing either a KrF excimer laser (3. = 248 nm) or a frequency-doubled Nd:YAG laser (3. = 532 rim). The crystalline structure, surface morphology, optical and electrical properties of the deposited films were found to de...
متن کاملIn vacuo pulsed laser ablation of YBa2Cu3O7−x target for the formation of Y2O3 nanostructures
The formation of superconducting YBa2Cu3O7−x (Y123) by in situ pulsed laser deposition from a stoichiometric Y123 target typically requires an oxygen-ambient environment (P ∼ 100–300-mtorr O2) and appropriate substrate temperature during deposition. We have found that pulsed laser deposition from a Y123 target in vacuo onto a (001) LaAlO3 substrate favors the formation of Y2O3. We observed that...
متن کاملOptimal SQUID based non-destructive test for detecting sub-surface defects with the help of advanced SQUID superconducting sensors and an experimental approach for optimal production method of these sensors from the YBCO superconductor materials
The conventional eddy current method for non-destructive inspection of welding joints has limitations that can examine defects to a certain depth below the surface of the sample and is not suitable for determining deep defects. This limitation can be overcome using the SQUID superconducting sensors. The nonstoichiometric composition of YBCO due to its superconducting temperature and desired cri...
متن کاملPulsed DC- Plasma Assisted Chemical Vapor Deposition of α-rich Nanostructured Tantalum Film: Synthesis and Characterization
This paper is an attempt to synthesize nanostructured tantalum films on medical grade AISI 316L stainless steel (SS) using pulsed DC plasma assisted chemical vapor deposition (PACVD). The impact of duty cycle (17-33%) and total pressure (3-10 torr) were studied using field emission scanning electron microscopy (FESEM), grazing incidence x-ray diffraction (GIXRD), nuclear reaction analysis (NRA)...
متن کاملPulsed Laser Deposition of Diamond-like Carbon Thin Films: Ablation Dynamics and Growth
Thin films of diamond-like carbon have been grown by pulsed laser deposition using a Nd:YAG laser at 532 nm. Time-of-flight mass spectroscopy was used to investigate the effects of laser power density and background gas pressure on the plume characteristics including the species in the plume and the kinetic energy distribution of each species. We found that with increasing laser power density (...
متن کامل