Ising-Type Magnetic Ordering in Atomically Thin FePS3

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Title
Ising-Type Magnetic Ordering in Atomically Thin FePS3
Author(s)
Jae-Ung Lee; Sungmin Lee; Ji Hoon Ryoo; Soonmin Kang; Tae Yun Kim; Pilkwang Kim; Cheol-Hwan Park; Je-Geun Park; Hyeonsik Cheong
Publication Date
2016-12
Journal
NANO LETTERS, v.16, no.12, pp.7433 - 7438
Publisher
AMER CHEMICAL SOC
Abstract
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. © 2016 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/3328
ISSN
1530-6984
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
Files in This Item:
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