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Single layers of transition-metal thiophosphates (2D-TMPS$_{3}$) van der Waals magnets are an ideal platform for studying antiferromagnetic interactions in two dimensions. However, the magnetic coupling mechanism between two or more…

Materials Science · Physics 2024-10-18 Andrea León , Beatriz Costa , Thomas Heine , Thomas Brumme

Twisted heterostructures of two-dimensional crystals offer almost unlimited scope for the design of novel metamaterials. Here we demonstrate a room-temperature ferroelectric semiconductor that is assembled using mono- or few- layer MoS2.…

Two-dimensional (2D) materials possess great potential for flexible devices, ascribing to their outstanding electrical, optical, and mechanical properties. However, their mechanical deformation property and fracture mechanism, which are…

Complex van der Waals heterostructures from layered molecular stacks are promising optoelectronic materials offering means to efficient, modular charge separation and collection layers. The effect of stacking in the electrodynamics of such…

Van der Waals heterobilayers based on 2D transition metal dichalcogenides have been recently shown to support robust and long-lived valley polarization for potential valleytronic applications. However, the role of the band structure and…

Two-dimensional altermagnets exhibit exceptional potential for low-power spintronics via nonrelativistic spin splitting and zero net magnetization. Here, we systematically investigate the influence of interlayer interactions on the…

Materials Science · Physics 2026-03-25 Siqi Xu , Qilong Cui , Shaowen Xu , Xianbo Chenwei , Jiahao Zhang , Ruixue Li , Yuan Li , Gaofeng Xu , Fanhao Jia

The ability to create superlattices in van der Waals (vdW) heterostructures via moir\'e interference heralded a new era in the science and technology of two-dimensional materials. Through precise control of the twist angle, flat bands and…

Electric polarization and metallicity are long believed not to coexist until the emergence of exceptionally rare material examples including the bulk polar metals and more recently two-dimensional (2D) van der Waals (vdW) materials such as…

Mesoscale and Nanoscale Physics · Physics 2025-10-13 Zhou Zhou , Xiyao Peng , Jianfeng Bi , Fei Xue , Jie Jiang , Huizhen Wu , Zhiwen Shi , Haoliang Qian , Toshikaze Kariyado , Sihan Zhao

Two-dimensional (2D) van der Waals (vdW) magnets present a promising platform for spintronic applications due to their unique structural and electronic properties. The ability to electrostatically control their interlayer magnetic coupling…

Mesoscale and Nanoscale Physics · Physics 2025-10-02 B. Liu , J. S. Feng , H. J. Xiang , Z. Dai , Zhi-Xin Guo

Two-dimensional (2D) insulators are a key element in the design and fabrication of van der Waals heterostructures. They are vital as transparent dielectric spacers whose thickness can influence both the photonic, electronic, and…

Controlling magnetism by purely electrical means is a key challenge to better information technology1. A variety of material systems, including ferromagnetic (FM) metals2,3,4, FM semiconductors5, multiferroics6,7,8 and magnetoelectric (ME)…

Mesoscale and Nanoscale Physics · Physics 2018-03-21 Shengwei Jiang , Jie Shan , Kin Fai Mak

In recent years, sliding ferroelectricity has emerged as a topic of significant interest due to its possible application in non-volatile, reconfigurable storage devices. This phenomenon is unique to two-dimensional van der Waals materials,…

The van der Waals heterostructures are a fertile frontier for discovering emergent phenomena in condensed matter systems. They are constructed by stacking elements of a large library of two-dimensional materials, which couple together…

Mesoscale and Nanoscale Physics · Physics 2020-05-22 William Dorrell , Harris Pirie , S. Minhal Gardezi , Nathan C. Drucker , Jennifer E. Hoffman

Twisted van der Waals (vdW) heterostructures have recently emerged as an attractive platform to study tunable correlated electron systems. However, the quantum mechanical nature of vdW heterostructures makes their theoretical and…

Mesoscale and Nanoscale Physics · Physics 2021-04-28 S. Minhal Gardezi , Harris Pirie , William Dorrell , Jennifer E. Hoffman

Sliding ferroelectricity is a unique type of polarity recently observed in a properly stacked van der Waals bilayer. However, electric-field control of sliding ferroelectricity is hard and could induce large coercive electric fields and…

Materials Science · Physics 2024-03-13 Jian Wang , Xu Li , Xingyue Ma , Lan Chen , Jun-Ming Liu , Chun-Gang Duan , Jorge Íñiguez-González , Di Wu , Yurong Yang

In this paper we analyze spin waves in bilayers of two-dimensional van der Waals materials, like Vanadium based dichalcogenides, VX$_2$ (X=S, Se, Te) and other materials of similar symmetry. We assume that the materials exhibit…

Mesoscale and Nanoscale Physics · Physics 2024-04-23 Wojciech Rudziński , Józef Barnaś , Anna Dyrdał

Two-dimensional (2D) magnets have broad application prospects in the spintronics, but how to effectively control them with a small electric field is still an issue. Here we propose that 2D magnets can be efficiently controlled in a…

Mesoscale and Nanoscale Physics · Physics 2022-02-01 Ping Li , Xue-Song Zhou , Zhi-Xin Guo

We introduce a universal methodology for generating and manipulating altermagnetism in two-dimensional (2D) magnetic van der Waals (MvdW) materials through twisting. We find that a key in-plane 2-fold rotational operation can be achieved in…

Materials Science · Physics 2024-11-19 Yichen Liu , Junxi Yu , Cheng-Cheng Liu

Ferroelectric HfO2 is a promising candidate for next-generation memory devices due to its CMOS compatibility and ability to retain polarization at nanometer scales. However, the polar orthorhombic phase (Pca2_1) responsible for…

Materials Science · Physics 2026-03-27 Jian Huang , Gwan Yeong Jung , Pravan Omprakash , Guodong Ren , Xin Li , Du Li , Xiaoshan Xu , Li Yang , Rohan Mishra

Exploring the coupling between layer, magnetism, valley, and topology in two-dimensional (2D) materials is an important approach to deepen our understanding of materials properties. We propose 27 stable ferromagnetic semiconductor…

Materials Science · Physics 2025-03-03 Xinyu Tian , Zixuan Zhang , Lixiu Guan , Xiaobiao Liu , Xiaoyu Zhao , Linyang Li