/layered antiferromagnet heterostructures

Van der Waals heterostructure has attracted much interest because of its high extensibility by using various layered materials. Furthermore, the recent discovery of 2D magnets has provided us a new platform to investigate magnetic van der Waals heterointerfaces, leading to novel studies on spin-/valley-tronics [1].
Here we report a new type of magnetic van der Waals heterointerface using monolayer transition metal dichalcogenides (especially MoSe₂) and layered antiferromagnets. We fabricated the samples by using all-dry-transfer method in inert atmosphere and performed photoluminescence measurements at low temperature. The characteristic spectra are observed below the transition temperature of the magnets, which suggests that the magnetic ordering can affect the exciton property of MoSe₂ directly.
[1] D. Zhong et al., Science Advances 3, e1603113 (2017).