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Ga⁺ implantation into the Fe5GT flake. (a) Microscopy image of a Fe5GT flake with the thickness ∼90 nm as indicated in (g). (b) Enlarged microscopy image of the region with various Ga exposure times. The milling area is labeled with different colors of squares (5 × 5 µm²). (h) Depth profile for areas with different exposure times in the region shown in (b). (c)–(f) Typical images of energy dispersive x-ray (EDX) spectroscopy mapping of 120 s Ga-implanted Fe5GT. (i) Atomic ratio of Ga implanted into the Fe5GT as a function of milling time.
Source publication
The creation of van der Waals (vdW) ferromagnets with tunable Curie temperature (TC) and magnetic anisotropy is essential in developing vdW magnet-based devices. Here, we report an effective and reliable method for modulating the magnetic properties of vdW Fe5GeTe2 by site-specific Ga+ implantation. In this study, we report an easy axis in the ab-p...
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Citations
The unveiling of two-dimensional (2D) van der Waals magnetism ignited a surge of interest in low-dimensional magnetism. With dimensions reduced, research has delved into facile electric control of 2D magnetism, high-quality heterostructure design, and new device functionality. These atomically thin magnetic materials have spawned a burgeoning field known as 2D spintronics, holding immense promise for future quantum technologies. In this review, we comprehensively survey the current advancements in 2D magnet-based quantum devices, accentuating their role in manifesting exotic properties and enabling novel functionalities. Topological states, spin torques, voltage control of magnetic anisotropy, strain engineering, twistronics, and designer interface will be discussed. Furthermore, we offer an outlook for their development in future CMOS and quantum hardware paradigms.
