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arXiv · 2401.06741

Magnetic properties of van der Waals layered single crystals DyOBr and SmOCl

Feihao Pan·Daye Xu·Songnan Sun·Jiale Huang·Chenglin Shang·Bingxian Shi·Xuejuan Gui·Jianfei Qin·Hongliang Wang·Lijie Hao·Jinchen Wang·Juanjuan Liu·Hongxia Zhang·Peng Cheng
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Abstract

Two-dimensional van der Waals single crystals DyOBr and SmOCl have been grown by flux method and their anisotropic magnetic properties are reported. DyOBr orders antiferromagnetically at T$_{N}$=9.5 K with magnetic moments lying along $a$-axis, similar as DyOCl. Its magnetic susceptibility shows an anomaly at T$^{*}$=30 K possibly due to the crystal field effect. Furthermore a 1/3 magnetization plateau is clearly observed under H$\parallel$a and H$\parallel$[110], which might be a field-induced spin-flop phase or some exotic quantum magnetic state. On the other hand, isostructural SmOCl undergoes an antiferromagnetic transition at T$_{N}$=7.1 K and exhibits a contrasting Ising-like perpendicular $c$-axis magnetic anisotropy, which could be well explained by our crystal field calculations. Both DyOBr and SmOCl are insulators with band gap of $\sim$5 eV, our results suggest they are promising in building van der Waals heterostructures and applications in multifunctional devices.

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Feihao Pan, Daye Xu, Songnan Sun, Jiale Huang, Chenglin Shang, Bingxian Shi, Xuejuan Gui, Jianfei Qin, Hongliang Wang, Lijie Hao, Jinchen Wang, Juanjuan Liu, Hongxia Zhang, Peng Cheng. 2024-01-12. Magnetic properties of van der Waals layered single crystals DyOBr and SmOCl. https://doi.org/10.1103/physrevmaterials.8.074006

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