Proximity-Induced Tunable Magnetic Order at the Interface of All-van der Waals-Layered Heterostructures.
basic_science · Level V
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- Record sourced from PubMed, PMID 37523780.
- Also identified by DOI 10.1021/acsnano.3c02764.
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Abstract
Spin-orbit coupling (SOC) plays a crucial role in controlling the spin-charge conversion efficiency, spin torque, and complex magnetic spin structures. In this study, we investigate the interplay between SOC and ferromagnetism in heterostructures of large-SOC and magnetic materials. We highlight the importance of the SOC-proximity effect on magnetic ordering in all-van der Waals-layered heterostructures, specifically Fe<sub>3</sub>GeTe<sub>2</sub>(FGT)/monolayer W<sub>1-<i>x</i></sub>V<sub><i>x</i></sub>Se<sub>2</sub> (<i>x</i> = 0 and 0.05). By increasing the SOC strength, we demonstrate various magnetic orderings induced at the interface of the heterostructure, including spin-flop, spin-flip, and inverted magnetization. Moreover, we show a sharp magnetic switching from antiferromagnetic state to ferromagnetic state in FGT/W<sub>0.95</sub>V<sub>0.05</sub>Se<sub>2</sub>, which is characteristic of the synthetic antiferromagnetic structure. This proof-of-concept result offers the possibility of interface-tailoring spintronics, including two-dimensional magnetoresistive random access memory toggle switching. Our findings provide insight into the design and development of next-generation spintronic devices by exploiting the interplay between SOC and magnetic ordering in all-van der Waals-layered heterostructures.