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We investigate the structural, magnetocrystalline anisotropy, critical behaviour, and magnetocaloric effect in the layered room-temperature monoclinic ferromagnet Cr$_{1.38}$Te$_2$. The critical behavior is studied by employing various…

Two-dimensional (2D) materials enable new types of magnetic and electronic phases mediated by their reduced dimensionality like magic-angle induced phase transitions, 2D Ising antiferromagnets and ferromagnetism in 2D atomic layers and…

A prominent character of two-dimensional magnetic systems is the enhanced spin fluctuations, which however reduce the ordering temperature. Here we report that a magnetic field of only one-thousandth of the Heisenberg superexchange…

Two-dimensional (2D) materials are frequently associated with the sheets which form bulk layered compounds bonded by van der Waals (vdW) forces. The anisotropy and weak interaction between the sheets have also been the main criteria in the…

We present electrical-resistivity measurements on the prototypical heavy-fermion ferromagnet UGe$_2$ under pulsed magnetic field up to 60~T. An anisotropic field-induced suppression of the electronic correlations is revealed. The electrical…

强关联电子 · 物理学 2026-03-11 K. Somesh , T. Thebault , V. Taufour , D. Aoki , F. Duc , G. Knebel , D. Braithwaite , W. Knafo

We propose a method for modeling the magnetic properties of nanomaterials with different structures. The method is based on the Ising model and the approximation of the random field interaction. It is shown that in this approximation, the…

综合物理 · 物理学 2015-06-11 Yury Kirienko , Leonid Afremov

A quantitative geometric predictor for the dimensionality of magnetic interactions is presented. This predictor is based on networks of superexchange interactions and can be quickly calculated for crystalline compounds of arbitrary…

材料科学 · 物理学 2018-09-13 Manohar H. Karigerasi , Lucas K. Wagner , Daniel P. Shoemaker

A set of thin film Mn$_x$Si$_{1-x}$ alloy samples with different manganese concentration x = 0.44 - 0.63 grown by the pulsed laser deposition (PLD) method onto the Al$_2$O$_3$(0001) substrate was investigated in the temperature range 4 -…

One of the main goals and challenges of materials discovery is to find the best candidates for each interest property or application. Machine learning rises in this context to efficiently optimize this search, exploring the immense…

材料科学 · 物理学 2021-08-04 Gabriel R. Schleder , Bruno Focassio , Adalberto Fazzio

The detection and classification of exfoliated two-dimensional (2D) material flakes from optical microscope images can be automated using computer vision algorithms. This has the potential to increase the accuracy and objectivity of…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Jan-Lucas Uslu , Alexey Nekrasov , Alexander Hermans , Bernd Beschoten , Bastian Leibe , Lutz Waldecker , Christoph Stampfer

In this work we conduct a numerical search of non-trivial mechanisms, leading to new tendencies towards long-range ferromagnetic ordering in two-dimensional materials. For this purpose we employ an original variant of pairwise infinitesimal…

材料科学 · 物理学 2022-01-03 I. V. Kashin , A. Gerasimov , E. V. Syrnikov

We report an advanced formulation of the Fourier modal method developed for two-dimensionally periodic multilayered structures containing materials with non-zero macroscopic magneto-electric coefficients (also known as coefficients of…

光学 · 物理学 2026-05-15 Ilia Smagin , Sergey Dyakov , Nikolay Gippius

Thanks to their unique properties single-layer 2-D materials appear as excellent candidates to extend Moore's scaling law beyond the currently manufactured silicon FinFETs. However, the known 2-D semiconducting components, essentially…

介观与纳米尺度物理 · 物理学 2020-06-30 Cedric Klinkert , Áron Szabó , Christian Stieger , Davide Campi , Nicola Marzari , Mathieu Luisier

The search for two-dimensional (2D) magnetic materials has attracted a great deal of attention because of the experimental synthesis of 2D CrI$_3$, which has a measured Curie temperature of 45 K. Often times, these monolayers have a higher…

强关联电子 · 物理学 2023-01-16 Daniel Wines , Kamal Choudhary , Francesca Tavazza

The development of two-dimensional (2D) room temperature magnets is of great significance to the practical application of spintronic devices. However, the number of synthesized intrinsic 2D magnets is limited and the performances of them…

材料科学 · 物理学 2023-10-24 Jing Wu , Ruyi Guo , Daoxiong Wu , Xiuling Li , Xiaojun Wu

We present a minimal model that provides a description of the magnetic and thermodynamic properties of \Eu. The model contains two exchange coupling parameters, which are calculated using Density Functional Theory, and a local easy axis…

其他凝聚态物理 · 物理学 2021-12-22 D. J. Garcia , V. Vildosola , A. A. Aligia , D. G. Franco , Pablo S. Cornaglia

Two-dimensional (2D) magnetic materials have attracted tremendous research interest because of the promising application in the next-generation microelectronic devices. Here, by the first-principles calculations, we propose a…

材料科学 · 物理学 2024-06-19 Ming Yan , Z. Y. Xie , Miao Gao

Metal-insulator transition (MIT) materials are a useful platform for emerging microelectronic, optoelectronic, and neuromorphic devices, but their discovery is hindered by the high computational cost of electronic structure modeling, the…

Magnetic order in two-dimensional (2D) materials is intimately coupled to magnetic anisotropy (MA) since the Mermin-Wagner theorem implies that rotational symmetry cannot be spontaneously broken at finite temperatures in 2D. Large MA thus…

材料科学 · 物理学 2018-12-21 Daniele Torelli , Thomas Olsen

Two-dimensional (2D) transition metal nitrides have a wide prospect of applications in the fields of physics, chemistry, materials, etc. However, 2D transition metal nitrides with strong magnetism, especially high N$\rm \acute{e}$el…

材料科学 · 物理学 2025-03-18 Lujia Tian , Lihui Han , Yuanfang Yue , Huazhen Li , Z. Y. Xie , Xun-Wang Yan