Distinct skyrmion phases at room temperature in two-dimensional ferromagnet Fe₃GaTe₂

Distinct skyrmion phases at room temperature in two-dimensional ferromagnet Fe₃GaTe₂

16 April 2024 | Xiaowei Lv¹,⁶, Hualing Lv²,⁶, Yalei Huang³,⁶, Ruixuan Zhang⁴, Guanhua Qin⁴, Yihui Dong³, Min Liu¹, Ke Pei¹, Guixin Cao³,⁴, Jincang Zhang⁴, Yuxiang Lai⁵ & Renchao Che¹,⁴
Researchers have observed distinct skyrmion phases at room temperature in the two-dimensional ferromagnet Fe3GaTe2. The study reveals the coexistence of Bloch and hybrid skyrmions, with hybrid skyrmions showing high thermostability up to 328 K. These findings open new possibilities for designing compact, energy-efficient spintronic devices. The magnetic skyrmions, with their topological spin configurations, are promising for applications such as racetrack memories. However, the skyrmion Hall effect, which causes skyrmions to annihilate at track boundaries, remains a challenge. The study demonstrates that hybrid skyrmions can move without this effect, making them suitable for future spintronic applications. The material Fe3GaTe2 exhibits a high Curie temperature (347 K), making it suitable for room-temperature spintronic devices. The coexistence of multiple skyrmion phases in a single material offers additional degrees of freedom for device design. The study also shows that the interplay between dipolar interaction and Dzyaloshinskii-Moriya interaction stabilizes the mixed Bloch-Neel spin textures. The results highlight the potential of Fe3GaTe2 for room-temperature spintronic devices with distinct skyrmion phases. The research combines experimental observations with simulations to confirm the existence of these skyrmion phases. The findings suggest that Fe3GaTe2 could be a promising material for future spintronic applications due to its high thermostability and unique magnetic properties. The study also discusses the implications of these findings for the development of 2D spintronic devices and the potential for new applications in topology-based memory systems.Researchers have observed distinct skyrmion phases at room temperature in the two-dimensional ferromagnet Fe3GaTe2. The study reveals the coexistence of Bloch and hybrid skyrmions, with hybrid skyrmions showing high thermostability up to 328 K. These findings open new possibilities for designing compact, energy-efficient spintronic devices. The magnetic skyrmions, with their topological spin configurations, are promising for applications such as racetrack memories. However, the skyrmion Hall effect, which causes skyrmions to annihilate at track boundaries, remains a challenge. The study demonstrates that hybrid skyrmions can move without this effect, making them suitable for future spintronic applications. The material Fe3GaTe2 exhibits a high Curie temperature (347 K), making it suitable for room-temperature spintronic devices. The coexistence of multiple skyrmion phases in a single material offers additional degrees of freedom for device design. The study also shows that the interplay between dipolar interaction and Dzyaloshinskii-Moriya interaction stabilizes the mixed Bloch-Neel spin textures. The results highlight the potential of Fe3GaTe2 for room-temperature spintronic devices with distinct skyrmion phases. The research combines experimental observations with simulations to confirm the existence of these skyrmion phases. The findings suggest that Fe3GaTe2 could be a promising material for future spintronic applications due to its high thermostability and unique magnetic properties. The study also discusses the implications of these findings for the development of 2D spintronic devices and the potential for new applications in topology-based memory systems.
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