Super-tetragonal Sr 4 Al 2 O 7 as a sacrificial layer for high-integrity freestanding oxide membranes

• DOI: 10.1126/science.adi6620
• Publication Date: 2024-01-25T18:58:30Z
• Authors: Jinfeng Zhang; Ting Lin; Ao Wang; Xiaochao Wang; Qingyu He; Huan Ye; Jingdi Lu; Qing Wang; Zhengguo Liang; Feng Jin; Shengru Chen; Minghui Fan; Er-Jia Guo; Qinghua Zhang; Lin Gu; Zhenlin Luo; Liang Si; Wenbin Wu; Lingfei Wang
• Keywords: Tetragonal crystal system

Identifying a suitable water-soluble sacrificial layer is crucial to fabricating large-scale freestanding oxide membranes, which offer attractive functionalities and integrations with advanced semiconductor technologies. Here, we introduce layer, "super-tetragonal" Sr