[23p-12N-1~15] 11.2 Thin and thick superconducting films, coated conductors and film crystal growth

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)

[23p-12N-6] Spiral growth in BMO+REBCO thin films computed by thin film crystal growth simulation

〇Yusuke Ichino^1,5, Tomonori Arita^2,5, Yoshiyuki Seike¹, Noriyuki Taoka¹, Tatsuo Mori¹, Keiichi Horio^3,5, Ataru Ichiose^4,5, Tomoya Horide^2,5, Kaname Matsumoto^2,5, Yutaka Yoshida^2,5 (1.AIT, 2.Nagoya Univ., 3.KyuTech., 4.CRIEPI, 5.JST-CREST)

Keywords:

oxide superconductor,epitaxial,simulation

We have developed thin-film crystal growth simulations and clarified the growth mechanism of self-organized BaMO₃ (BMO) nanorods in REBa₂Cu₃O_y (REBCO) thin films [JJAP 56 (2017) 015601, IEEE TAS 27 (2017) 7500304, IEEE TAS 31 (2021) 7500204]. The Fireworks structure, in which BMO nanorods radiate outwards from the centre of the REBCO grains, has been observed in experimental results [APL Mater. 4 (2016) 016102], but this has not yet been reproduced in simulations. This is expected to be influenced by thin-film-specific growth such as spiral growth. We have also developed simulations of spiral growth. In this presentation, we aim to clarify the influence of spiral growth on nanostructures in thin-film crystal growth simulations.