Controlled synthesis of 2D magnets via chemical vapor deposition

• Main Author: Lau, Pearly Poh Yin
• Other Authors: Liu Zheng
• Format: Final Year Project
• Language: English
• Published: Nanyang Technological University 2021
• Subjects: Engineering::Materials
• Online Access: https://hdl.handle.net/10356/147848
• Institution: Nanyang Technological University

Since the discovery of ferromagnetism in 2D materials, achieving Tc near room temperature has tremendously attracted many possibilities for novel spintronics device applications. These possibilities attracted many researchers to explore possible 2D ferromagnets to achieve Tc at room temperature and ambient stability. In this study, synthesis of Fe5GeTe2 has been done, and RMCD characterization revealed it to have a Tc of 260 K. Therefore, Fe5GeTe2 was alloyed with Copper (II) Chloride and synthesized Fe5CuGeTe2 via the Chemical Vapor Deposition approach. The alloyed Fe5CuGeTe2 has excellent room temperature stability. Additionally, controlled CVD synthesis and optimization reactions of FeTe2 reveal high quality and crystallization.