Van der Waals Epitaxy of Bismuth‐Based Multiferroic Layered Supercell Oxide Thin Films Integrated on Flexible Mica Substrate

• DOI: 10.1002/smsc.202300244
• Publication Date: 2023-12-28T21:56:02Z
• Authors: Jianan Shen; Benson Kunhung Tsai; Yizhi Zhang; Ke Xu; James P. Barnard; Zedong Hu; Xinghang Zhang; Haiyan Wang
• Keywords: Bi2NiMnO6 films; multiferroics; layered supercell structures; mica; TA401-492; flexible electronics; Materials of engineering and construction. Mechanics of materials; 01 natural sciences; 0104 chemical sciences

Bi 2 NiMnO 6 (BNMO) epitaxial thin films with a layered supercell (LSC) structure have emerged as promising single‐phase multiferroic material recently. Because of the required strain state for formation LSC structures, most previous BNMO are demonstrated on rigid oxide substrates such SrTiO 3 and LaAlO . Here, potential grown muscovite mica via van der Waals epitaxy, spotlighting their suitability cutting‐edge flexible device applications is delved. Comprehensive scanning transmission electron microscopy/energy‐dispersive X‐ray analyses reveal in film pristine interface substrate, indicating high‐quality deposition minimal interfacial defects. Capitalizing its unique property easily cleavable layers due to weak forces substrates, BNMO/mica samples fixed. A standout feature substrate consistent properties across varied mechanical conditions. novel technique introduced thinning subsequent transfer sample, post‐transfer validating preserved structural magnetic attributes film. Overall, this study illuminates resilient mica, offering avenues integration next‐generation electronics.