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Incommensurate Antiferromagnetic Order in Weakly Frustrated Two-Dimensional van der Waals Insulator CrPSe3

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Title
Incommensurate Antiferromagnetic Order in Weakly Frustrated Two-Dimensional van der Waals Insulator CrPSe3
Author(s)
Mallesh Baithi; Dang, Ngoc Toan; Tran, Tuan Anh; Fix, J. Pierce; Dinh Hoa Luong; Dhakal, Krishna P.; Duhee Yoon; Rutkauskas, Anton V.; Kichanov, Sergei E.; Zel, Ivan Y.; Kim, Jeongyong; Borys, Nicholas J.; Kozlenko, Denis P.; Young Hee Lee; Dinh Loc Duong
Publication Date
2023-08
Journal
INORGANIC CHEMISTRY, v.62, no.32, pp.12674 - 12682
Publisher
AMER CHEMICAL SOC
Abstract
Copyright © 2023 American Chemical Society. The two-dimensional (2D) van der Waals(vdW) material MPX3 with a hexagonal-like arrangement oftransition metal atomsin the vdW layers has a diversity of commensurate antiferromagneticorders. Distinctly, CrPSe3 reveals a weakly frustratedincommensurate antiferromagnetic order without structural phase transition. Although magnetic order is suppressed by a strong frustration,it appears in complex forms such as a cycloid or spin density wavein weakly frustrated systems. Herein, we report a weakly magneticallyfrustrated two-dimensional (2D) van der Waals material CrPSe3. Polycrystalline CrPSe3 was synthesized at an optimizedtemperature of 700 & DEG;C to avoid the formation of any secondaryphases (e.g., Cr2Se3). The antiferromagnetictransition appeared at T (N) & AP; 127K with a large Curie-Weiss temperature & theta;(CW) & AP; -301 K via magnetic susceptibility measurements,indicating weak frustration in CrPSe3 with a frustrationfactor of f (|& theta;(CW)|/T (N)) & AP; 2.4. Evidently, the formation of a long-rangeincommensurate antiferromagnetic order was revealed by neutron diffractionmeasurements at low temperatures (below 120 K). The monoclinic crystalstructure of the C2/m symmetry ispreserved over the studied temperature range down to 20 K, as confirmedby Raman spectroscopy measurements. Our findings on the incommensurateantiferromagnetic order in 2D magnetic materials, not previously observedin the MPX3 family, are expected to enrich the physicsof magnetism at the 2D limit, thereby opening opportunities for theirpractical applications in spintronics and quantum devices.
URI
https://pr.ibs.re.kr/handle/8788114/13894
DOI
10.1021/acs.inorgchem.3c00795
ISSN
0020-1669
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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