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Two-dimensional materials prospects for non-volatile spintronic memories
Nature  (IF69.504),  Pub Date : 2022-06-22, DOI: 10.1038/s41586-022-04768-0
Hyunsoo Yang, Sergio O. Valenzuela, Mairbek Chshiev, Sébastien Couet, Bernard Dieny, Bruno Dlubak, Albert Fert, Kevin Garello, Matthieu Jamet, Dae-Eun Jeong, Kangho Lee, Taeyoung Lee, Marie-Blandine Martin, Gouri Sankar Kar, Pierre Sénéor, Hyeon-Jin Shin, Stephan Roche

Non-volatile magnetic random-access memories (MRAMs), such as spin-transfer torque MRAM and next-generation spin–orbit torque MRAM, are emerging as key to enabling low-power technologies, which are expected to spread over large markets from embedded memories to the Internet of Things. Concurrently, the development and performances of devices based on two-dimensional van der Waals heterostructures bring ultracompact multilayer compounds with unprecedented material-engineering capabilities. Here we provide an overview of the current developments and challenges in regard to MRAM, and then outline the opportunities that can arise by incorporating two-dimensional material technologies. We highlight the fundamental properties of atomically smooth interfaces, the reduced material intermixing, the crystal symmetries and the proximity effects as the key drivers for possible disruptive improvements for MRAM at advanced technology nodes.