Magnet- in- ferroelectric crystals exhibiting photomultiferroicity

• 成果类型: Article
• 署名作者: Wang, Zhongxuan; Wang, Qian; Gong, Weiyi; Chen, Amy; Islam, Abdullah; Quan, Lina; Woehl, Taylor J.; Yan, Qimin; Ren, Shenqiang
• 署名单位: University System of Maryland; University of Maryland College Park; Virginia Polytechnic Institute & State University; Northeastern University; Virginia Polytechnic Institute & State University; University System of Maryland; University of Maryland College Park
• 刊物名称: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• ISSN/ISSBN: 0027-10933
• DOI: 10.1073/pnas.2322361121
• 发表日期: 2024-04-23
• 关键词: electric-field; pressure; ferromagnetism; magnetization

摘要

Growing crystallographically incommensurate and dissimilar organic materials is fundamentally intriguing but challenging for the prominent cross - correlation phenomenon enabling unique magnetic, electronic, and optical functionalities. Here, we report the growth of molecular layered magnetin - ferroelectric crystals, demonstrating photo manipulation of interfacial ferroic coupling. The heterocrystals exhibit striking photomagnetization and magnetoelectricity, resulting in photomultiferroic coupling and complete change of their color while inheriting ferroelectricity and magnetism from the parent phases. Under a light illumination, ferromagnetic resonance shifts of 910 Oe are observed in heterocrystals while showing a magnetization change of 0.015 emu/g. In addition, a noticeable magnetization change (8% of magnetization at a 1,000 Oe external field) in the vicinity of ferro - to - paraelectric transition is observed. The mechanistic electric - field - dependent studies suggest the photoinduced ferroelectric field effect responsible for the tailoring of photopiezo - magnetism. The crystallographic analyses further evidence the lattice coupling of a magnetin - ferroelectric heterocrystal system.