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

Distinct skyrmion phases at room temperature hosted by one material offer additional degree of freedom for the design of topology-based compact and energetically-efficient spintronic devices. The field has been extended to low-dimensional magnets with the discovery of magnetism in two-dimensional va...

Full description

Saved in:
Bibliographic Details
Published in:Nature communications 2024-04, Vol.15 (1), p.3278-3278, Article 3278
Main Authors: Lv, Xiaowei, Lv, Hualiang, Huang, Yalei, Zhang, Ruixuan, Qin, Guanhua, Dong, Yihui, Liu, Min, Pei, Ke, Cao, Guixin, Zhang, Jincang, Lai, Yuxiang, Che, Renchao
Format: Article
Language:English
Subjects:
147/143
639/301/119/2793
639/301/119/997
Coexistence
Electrons
Ferromagnetism
Humanities and Social Sciences
Hypothetical particles
Magnetic fields
Magnetism
Magnets
Microscopy
multidisciplinary
Particle theory
Phases
R&D
Racetracks
Research & development
Room temperature
Science
Science (multidisciplinary)
Temperature
Thermal stability
Topology
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Distinct skyrmion phases at room temperature hosted by one material offer additional degree of freedom for the design of topology-based compact and energetically-efficient spintronic devices. The field has been extended to low-dimensional magnets with the discovery of magnetism in two-dimensional van der Waals magnets. However, creating multiple skyrmion phases in 2D magnets, especially above room temperature, remains a major challenge. Here, we report the experimental observation of mixed-type skyrmions, exhibiting both Bloch and hybrid characteristics, in a room-temperature ferromagnet Fe 3 GaTe 2 . Analysis of the magnetic intensities under varied imaging conditions coupled with complementary simulations reveal that spontaneous Bloch skyrmions exist as the magnetic ground state with the coexistence of hybrid stripes domain, on account of the interplay between the dipolar interaction and the Dzyaloshinskii-Moriya interaction. Moreover, hybrid skyrmions are created and their coexisting phases with Bloch skyrmions exhibit considerably high thermostability, enduring up to 328 K. The findings open perspectives for 2D spintronic devices incorporating distinct skyrmion phases at room temperature. Most 2D magnets support only a single skyrmion phase. Here, the authors observe two distinct topological phases: Bloch and hybrid skyrmions, with high thermostability in the room-temperature ferromagnet Fe 3 GaTe 2 .
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-024-47579-9