Persistence of Magnetism in Atomically Thin MnPS3 Crystals

Nano Letters
Gen LongAlberto F Morpurgo

Abstract

The magnetic state of atomically thin semiconducting layered antiferromagnets such as CrI3 and CrCl3 can be probed by forming tunnel barriers and measuring their resistance as a function of magnetic field (H) and temperature (T). This is possible because the spins within each individual layer are ferromagnetically aligned and the tunneling magnetoresistance depends on the relative orientation of the magnetization in adjacent layers. The situation is different for systems that are antiferromagnetic within the layers in which case it is unclear whether magnetoresistance measurements can provide information about the magnetic state. Here, we address this issue by investigating tunnel transport through atomically thin crystals of MnPS3, a van der Waals semiconductor that in the bulk exhibits easy-axis antiferromagnetic order within the layers. For thick multilayers below T ∼ 78 K, a T-dependent magnetoresistance sets in at μ0H ∼ 5 T and is found to track the boundary between the antiferromagnetic and the spin-flop phases known from bulk measurements. We show that the magnetoresistance persists as thickness is reduced with nearly unchanged characteristic temperature and magnetic field scales, albeit with a different dependence on H,...Continue Reading

References

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Nov 13, 2019·Nature Nanotechnology·Zhe WangAlberto F Morpurgo

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Citations

Mar 16, 2021·ACS Applied Materials & Interfaces·Marshet G SendekuJun He
May 19, 2021·Chemical Society Reviews·Shao-Hai LiYi-Jun Xu
Jul 7, 2021·ACS Nano·Carla Boix-ConstantEugenio Coronado
May 21, 2020·Journal of the American Chemical Society·Wei BaiYi Xie
Nov 2, 2021·Journal of the American Chemical Society·Javier López-CabrellesEugenio Coronado
Nov 3, 2021·Nature Communications·Guangyi ChenJian-Hao Chen
Nov 4, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Isaac Brotons-AlcázarEugenio Coronado

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