caa a22 4500 445381868 CHVBK 20180317143019.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-0986-3 doi (NATIONALLICENCE)springer-10.1007/s10948-010-0986-3 Synthesis and Characterization of MgB2 Thin Films Prepared by2.4Mhz Ultrasonic Spray Pyrolysis System [Elektronische Daten] [Z. Yakinci, Y. Aydoğdu] Nano-sized B and Mg powders have been successfully deposited onto single crystal MgO(100) and Al2O3(001)substrates using 2.4 MHz ultrasonic spray pyrolysis system and an appropriate solution to obtain thin films of MgB2 superconductors. After an in-situ heating process, ∼600-1000 nm thick superconductor films were obtained. The microstructure, electrical, and magnetic properties were characterized by means of particle size analyzer, XRD, SEM-EDX, R-T, and M-H analysis. The effect of particle concentration in the solution, spraying time, and heating temperature on the quality of the MgB2 films were discussed. The best T c and T zero results were obtained to be 39.5 and 37.4 K, respectively, for the film deposited on the Al2O3(001) substrates. Magnetic properties of the MgB2 films were investigated at 3 different temperatures and up to 5 T. Symmetric hysteresis loops for all temperature and field cases were obtained and maximum $J_{c}^{\mathrm{mag}}$ value was calculated to be 4.0×106A cm−2 at 10 K for 0 T for the film deposited on the Al2O3(001) substrates. The results obtained were found to be highly dependant on the particle concentration in the solution, heating temperature of substrates and carrier gas flow rate during spraying. Springer Science+Business Media, LLC, 2010 MgB2 superconductor nationallicence Ultrasonic spray pyrolysis nationallicence MgB2 thin films nationallicence Superconducting MgB2 films nationallicence Yakinci Z. Sağlık Hizmetleri MYO, İnönü Üniversitesi, 44280, Malatya, Turkey aut Aydoğdu Y. Fen Edb. Fakültesi, Fizik Bölümü, Fırat Üniversitesi, 23100, Elazığ, Turkey aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 529-534 1557-1939 24:1-2<529 2011 24 10948 https://doi.org/10.1007/s10948-010-0986-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0986-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yakinci Z. Sağlık Hizmetleri MYO, İnönü Üniversitesi, 44280, Malatya, Turkey aut NATIONALLICENCE 700 1- Aydoğdu Y. Fen Edb. Fakültesi, Fizik Bölümü, Fırat Üniversitesi, 23100, Elazığ, Turkey aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 529-534 1557-1939 24:1-2<529 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer