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Two-dimensional Chern insulators have emerged as crucial platforms for the realization of the quantum anomalous Hall effect, and as such have attracted significant interest in spintronics and topological quantum physics due to their unique…

介观与纳米尺度物理 · 物理学 2026-02-24 Panjun Feng , Miao Gao , Xun-Wang Yan , Fengjie Ma

Two-dimensional materials constitute a promising platform for developing nanoscale devices and systems. Their physical properties can be very different from those of the corresponding three-dimensional materials because of extreme quantum…

介观与纳米尺度物理 · 物理学 2018-05-15 P. Chen , Woei Wu Pai , Y. -H. Chan , A. Takayama , C. -Z. Xu , A. Karn , S. Hasegawa , M. Y. Chou , S. -K. Mo , A. -V. Fedorov , T. -C. Chiang

Two-dimensional (2D) intrinsic ferromagnetic semiconductors are expected to stand out in the spintronic field. Recently, the monolayer VI$_{3}$ has been experimentally synthesized but the weak ferromagnetism and low Curie temperature…

材料科学 · 物理学 2020-04-22 Yulu Ren , Qiaoqiao Li , Wenhui Wan , Yong Liu , Yanfeng Ge

Materials with large intrinsic valley splitting and high Curie temperature are a huge advantage for studying valleytronics and practical applications. In this work, using first-principles calculations, a new Janus TaNF monolayer is…

材料科学 · 物理学 2023-04-13 Guibo Zheng , Shuixian Qu , Wenzhe Zhou , Fangping Ouyang

The electronic and magnetic properties of transition metal dichalcogenides are known to be extremely sensitive to their structure. In this paper we study the effect of structure on the electronic and magnetic properties of mono- and bilayer…

Two-dimensional (2D) transition metal dichalcogenides (TMDs) are prospective materials for quantum devices owing to their inherent 2D confinements. They also provide a platform to realize even lower-dimensional in-plane electron…

介观与纳米尺度物理 · 物理学 2019-12-19 Ziqian Wang , Ruichun Luo , Isaac Johnson , Hamzeh Kashani , Mingwei Chen

Recently, the successful synthesis of the pentagonal form of PdTe$_{2}$ monolayer (\emph{p}-PdTe$_{2}$) was reported [Liu~\emph{et al.}, Nature Materials \textbf{23}, 1339 (2024)]. In this work, we present an extensive first-principles…

材料科学 · 物理学 2025-01-07 Poonam Sharma , Vaishali Roondhe , Alok Shukla

Double perovskite-based magnets wherein frustration and competition between emergent degrees of freedom are at play can lead to novel electronic and magnetic phenomena. Herein, we report the electronic structure and magnetic properties of…

Two dimensional materials as electrodes have shown unique advantages such as the infinite planar lengths, broad electrochemical window, and much exposed active sites. In this work, by means of density functional theory computations, we…

应用物理 · 物理学 2019-12-25 Dawei Zhoua , Xin Tangb , Chunying Pua

We report a study of nano-scale structural peculiarities of the antiferromagnetic layered semimetal EuSn2As2, and show that they are responsible for its puzzling magnetic properties. The high resolution transmission electron microscopy…

We report the successful synthesis of the polycrystalline compounds CePd$_2$As$_{2-x}$P$_x$ ($0 \leq x \leq 2$) and their physical properties by measuring the transport, magnetic and thermodynamic behaviors as a function of temperature…

强关联电子 · 物理学 2013-12-25 T Shang , Y H Chen , W B Jiang , Y Chen , L Jiao , J L Zhang , Z F Weng , X Lu , H Q Yuan

One account of two-dimensional (2D) structural transformations in 2D ferroelectrics predicts an evolution from a structure with Pnm2$_1$ symmetry into a structure with square P4/nmm symmetry and is consistent with experimental evidence,…

软凝聚态物质 · 物理学 2020-05-13 John W. Villanova , Pradeep Kumar , Salvador Barraza-Lopez

Low-dimensional (LD) transition metal dichalcogenides (TMDs) in the form of nanoflakes, which consist of one or several layers, are the subject of intensive fundamental and applied research. Due to the size-induced transition from a bulk to…

As a way to further improve the electronic properties of group V layered semiconductors, we propose to form in-layer 2D heterostructures of black phosphorus and grey arsenic. We use \textit{ab initio} density functional theory to optimize…

介观与纳米尺度物理 · 物理学 2015-10-28 Zhen Zhu , Jie Guan , David Tomanek

The coexistence of high-temperature intrinsic ferromagnetic ordering, large magnetic anisotropy, along with novel mechanical properties such as ferroelasticity and flexibility, in experimental feasible two-dimensional (2D) crystals is…

介观与纳米尺度物理 · 物理学 2025-11-21 Xinyuan Huang , Yueqiao Qu , Yu Liao , Qian Zheng , Ran Liu , Yu Chen , Liang Liu , Junzhong Wang , Gang Yao

The structural, electronic and magnetic properties of single layers of Iron Dichloride (FeCl$_{2}$) were calculated using first principles calculations. We found that the 1T phase of the single layer FeCl$_{2}$ is 0.17 eV/unit cell more…

材料科学 · 物理学 2015-07-31 E. Torun , H. Sahin , S. K. Singh , F. M. Peeters

The novel carbon allotrope with particular and unique 2D arrangement of carbon atoms similar to a Cairo pentagonal tiling, with interplay of $sp^{3}$ and $sp^{2}$ hybridized carbon atoms is called of Penta-graphene (PG). Previous…

材料科学 · 物理学 2021-07-07 W. H. S. Brandão , A. L. Aguiar , J. M. De Sousa

Nowadays, designing and searching for materials with multiple functional characteristics are the key to achieving high-performance electronic devices. Among many candidates, two-dimensional multiferroic materials have great potential to be…

材料科学 · 物理学 2020-11-03 Hai-Peng You , Ning Ding , Jun Chen , Shuai Dong

Transition metal-pnictide compounds have received attention for their tendency to combine magnetism and unconventional superconductivity. Binary CoAs lies on the border of paramagnetism and the more complex behavior seen in isostructural…

The intersection between nonsymmorphic symmetry and electronic correlations has emerged as a platform for topological Kondo semimetallic states and unconventional spin textures. Here we report the synthesis of nonsymmorphic…