@article{b58af7ae3a9941c8b49ec065e5b6064e,
title = " Suppression of magnetic ordering in XXZ-type antiferromagnetic monolayer NiPS 3 ",
abstract = " How a certain ground state of complex physical systems emerges, especially in two-dimensional materials, is a fundamental question in condensed-matter physics. A particularly interesting case is systems belonging to the class of XY Hamiltonian where the magnetic order parameter of conventional nature is unstable in two-dimensional materials leading to a Berezinskii−Kosterlitz−Thouless transition. Here, we report how the XXZ-type antiferromagnetic order of a magnetic van der Waals material, NiPS 3 , behaves upon reducing the thickness and ultimately becomes unstable in the monolayer limit. Our experimental data are consistent with the findings based on renormalization-group theory that at low temperatures a two-dimensional XXZ system behaves like a two-dimensional XY one, which cannot have a long-range order at finite temperatures. This work provides the experimental examination of the XY magnetism in the atomically thin limit and opens opportunities of exploiting these fundamental theorems of magnetism using magnetic van der Waals materials.",
author = "Kangwon Kim and Lim, {Soo Yeon} and Lee, {Jae Ung} and Sungmin Lee and Kim, {Tae Yun} and Kisoo Park and Jeon, {Gun Sang} and Park, {Cheol Hwan} and Park, {Je Geun} and Hyeonsik Cheong",
note = "Funding Information: The authors thank insightful discussions with H.C. Lee, S. Yoon, K. Burch, A. Wildes, and K.-Y. Choi. We are also grateful to S. Kang for his low-temperature single crystal X-ray diffraction experiments. This work was supported by the National Research Foundation (NRF) grants funded by the Korean government (MSIT) (NRF-2016R1A2B3008363, NRF-2018R1D1A1B07048749, No. 2016R1A1A1A05919979, and No. 2017R1A5A1014862, SRC program: vdWMRC center), by a grant (2013M3A6A5073173) from the Center for Advanced Soft Electronics under the Global Frontier Research Program of MSIT, and by the Creative-Pioneering Research Program through Seoul National University. Computational resources have been provided by KISTI Supercomputing Center (KSC-2017-S1-0011). Work at IBS CCES was supported by Institute for Basic Science (IBS) in Korea (IBS-R009-G1). Publisher Copyright: {\textcopyright} 2019, The Author(s).",
year = "2019",
month = dec,
day = "1",
doi = "10.1038/s41467-018-08284-6",
language = "English",
volume = "10",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
number = "1",
}