[9p-N405-1~18] 11.2 Thin and thick superconducting films, coated conductors and film crystal growth

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[9p-N405-1] Application study of the high-brightness synchrotron radiation facility NanoTerasu to high-temperature superconducting thin films

〇Ataru Ichinose^1,5, Tomoya Horide^2,5, Yusuke Ichino^3,5, Keiichi Horio^4,5, Kaname Matsumoto^2,5, Yutaka Yoshida^2,5 (1.CRIEPI, 2.Nagoya Univ., 3.AIT, 4.KIT, 5.JST-CREST)

Keywords:

superconductor thin film,NanoTerasu,YBCO

We will present the results of an attempt to visualize the elemental and chemical states of YBa₂Cu₃O_y superconducting thin films using the BL14U beamline at the NanoTerasu 3 GeV high-brightness synchrotron radiation facility at the Aobayama Campus of Tohoku University. The measurement sample was a YBa₂Cu₃O_y superconducting thin film fabricated on a SrTiO₃ single crystal substrate by the PLD method. One sample was divided into two, one of which was post-treated with oxygen annealing to obtain a superconducting thin film with a different chemical state. By comparing the spectra near the X-ray absorption edge of Cu, we found that the chemical states were different, and by taking X-ray absorption imaging at several energies near the X-ray absorption edge, it was possible to analyze the local chemical state of Cu. It is believed that important information can be obtained by combining this with compositional analysis such as EDX analysis.