Zhiyan Jia, Qian Chen, Wenjie Wang, Rong Sun, Zichao Li, René Hübner, Shengqiang Zhou, Miming Cai, Weiming Lv, Zhipeng Yu, Fang Zhang, Mengfan Zhao, Sen Tian, Lixuan Liu, Zhongming Zeng, Yong Jiang, Zhongchang Wang
2D magnetic materials hold substantial promise in information storage and neuromorphic device applications. However, achieving a 2D material with high Curie temperature (TC ), environmental stability, and multi-level magnetic states remains a challenge. This is particularly relevant for spintronic devices, which require multi-level resistance states to enhance memory density and fulfil low power consumption and multi-functionality. Here, the synthesis of 2D non-layered triangular and hexagonal magnetite (Fe3 O4 ) nanosheets are proposed with high TC and environmental stability, and demonstrate that the ultrathin triangular nanosheets show broad antiphase boundaries (bAPBs) and sharp antiphase boundaries (sAPBs), which induce multiple spin precession modes and multi-level resistance...
May 5, 2024: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)