Ising-Type Magnetic Ordering in Atomically Thin FePS3.

By Jae-Ung Lee, Sungmin Lee, Ji Hoon Ryoo, Soonmin Kang, Tae Yun Kim, Pilkwang Kim, Cheol-Hwan Park, Je-Guen Park, H. Cheong. Nano letters (Print), 2016

961 citations recorded by the source corpus.

Magnetism in two-dimensional materials is not only of fundamental scientific interest but also a promising candidate for numerous applications. However, studies so far, especially the experimental ones, have been mostly limited to the magnetism arising from defects, vacancies, edges, or chemical dopants which are all extrinsic effects. Here, we report on the observation of intrinsic antiferromagnetic ordering in the two-dimensional limit. By monitoring the Raman peaks that arise from zone folding due to antiferromagnetic ordering at the transition temperature, we demonstrate that FePS3 exhibits an Ising-type antiferromagnetic ordering down to the monolayer limit, in good agreement with the Onsager solution for two-dimensional order-disorder transition. The transition temperature remains almost independent of the thickness from bulk to the monolayer limit with TN ∼ 118 K, indicating that the weak interlayer interaction has little effect on the antiferromagnetic ordering.

Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/92210fb2e698b1b1a6c01053533c785e678b25c3

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Citations in the corpus

Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems (2018, background): “of programmable logic arrays (Lee et al., 2016), four terminal devices that allow for direct cascading at high operation gain and low switching power (Kang et al.”
Probing and controlling magnetic states in 2D layered magnetic materials (2019, neutral): “As mentioned above, many of the early works on 2D layered magnetic materials used micro-Raman spectroscopy 79–84 .”
Probing magnetism in 2D van der Waals crystalline insulators via electron tunneling (2018, methodology): “As a consistency check, we can also fit the data to the usual Fowler-Nordheim equation (36) strictly valid only for VDC > F: " #BC = = %&'(]− 4FT2U∗Φ 3ħ& 1 #BC _ (6)”
On the origin of magnetic anisotropy in two dimensional CrI3 (2017, background): “The recent reports of ferromagnetic order in two different two dimensional crystals [1, 2], Cr2Ge2Te6 and CrI3, together with the report of antiferromagnetic order [3, 4] in FePS3 a few months earlier, mark the beginning of a new chapter in the remarkable field of two dimensional materials.”
Antiferromagnetic ordering in van der Waals 2D magnetic material MnPS3 probed by Raman spectroscopy (2019, methodology): “For example, Raman spectroscopy has been recently utilized to demonstrate that antiferromagnetic ordering is indeed sustained down to the 2D limit of monolayer FePS3 [13, 14].”