Abstract
Simple citrate sol–gel method assisted by ultrasonic irradiation has been employed to fabricate REBa2Cu3O7−X (RE123) (RE=Gd, Ho) nanostructures. The elevated temperature and pressure due to the sudden collapsing the bubbles with a high stability and energy in the ultrasonic procedure gave rise to a clear variation in the morphology, however compared with the bulk samples, the ultrasound waves had no significant effect on the onset critical temperature of the prepared nanoparticles (about 91.4K). Changes of the magnetic susceptibility with temperature were found to be independent of the applied field strength, probably due to the elimination of the weak links in the products. The influence of various solvents with different vapor pressures and so different destruction powers, including methanol, toluene, 1-butanol, and 1-hexanol, was also studied on the morphology and particle size of the products. The crystalline size of the Ho123 was calculated 32.38nm, according to the Williamson–Hall plot, in agreement with the TEM images. Using the Rietveld method, the lattice parameters of Ho123 nanoparticles were obtained to be slightly smaller than that of Gd123.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
