Synchrotron 3D-RSM reveals the microstructure of superconducting YBa2Cu3O7−x films grown on various substrates. - He, Qingyu; Peng, Erhao; Zhang, Jiquan; Chen, Fucong; Feng, Zhongpei; Li, Jiangxiao; Chen, Xinyan; Tao, Yajun; Gu, Yueliang; Dong, Yongqi; Yuan, Jie; Jin, Kui; et al. (Applied Physics Letters, 2025)