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We present the results of a muon-spin relaxation (muSR) investigation into magnetic ordering in several families of layered quasi-two-dimensional molecular antiferromagnets based on transition metal ions such as S=1/2 Cu2+ bridged with…

We demonstrate electron magnetic linear dichroism as a quantitative probe of vectorial magnetic order parameters with nanometer resolution in transmission electron microscopy. Explicit inclusion of vectorial core-level exchange splitting…

介观与纳米尺度物理 · 物理学 2026-05-28 Jan Hajduček , Jáchym Štindl , Ján Rusz , Vojtěch Uhlíř

Two of the most widely used electronic structure theory methods, namely Hartree-Fock and Kohn-Sham density functional theory, both requires the iterative solution of a set of Schr\"odinger-like equations. The speed of convergence of such…

化学物理 · 物理学 2024-06-06 S. Hazra , U. Patil , S. Sanvito

The unique features of ultrafast spin dynamics and the absence of macroscopic magnetization in antiferromagnetic (AFM) materials provide a distinct route towards high-speed magnetic storage devices with low energy consumption and high…

Compositional disorder is common in crystal compounds. In these compounds, some atoms are randomly distributed at some crystallographic sites. For such compounds, randomness forms many non-identical independent structures. Thus, calculating…

材料科学 · 物理学 2022-12-23 Mostafa Yaghoobi , Mojtaba Alaei

Electron density is a fundamental quantity, which can in principle determine all ground state electronic properties of a given system. Although machine learning (ML) models for electron density based on either an atom-centered basis or a…

化学物理 · 物理学 2024-10-08 Chaoqiang Feng , Yaolong Zhang , Bin Jiang

A recent inelastic neutron scattering experiment on $\mathrm{Yb}_2 \mathrm{Ti}_2 \mathrm{O}_7$ uncovers an unusual scattering continuum in the spin excitation spectrum despite the splayed ferromagnetic order in the ground state. While there…

强关联电子 · 物理学 2019-08-02 Li Ern Chern , Yong Baek Kim

Moir\'e patterns made of two-dimensional (2D) materials represent highly tunable electronic Hamiltonians, allowing a wide range of quantum phases to emerge in a single material. Current modeling techniques for moir\'e electrons requires…

介观与纳米尺度物理 · 物理学 2023-01-05 Diyi Liu , Mitchell Luskin , Stephen Carr

Altermagnets offer a route to spin-polarized electronic states without macroscopic magnetization, because compensated magnetic order can generate momentum-dependent spin splitting through crystal-symmetry-controlled exchange fields.…

材料科学 · 物理学 2026-05-28 Yi-Fei Jiang , Jia-Xuan Guo , Zhen Zhang , Xin-Wei Yi , Jing-Yang You

We employ a descriptor based machine-learning approach to assess the effect of chemical alloying on formation-enthalpy of rare-earth intermetallics. Application of machine-learning approaches in rare-earth intermetallic design have been…

We use symmetry analysis and density functional theory to show that changes in magnetic order at a surface with respect to magnetic order in the bulk can be generically determined by considering local magnetoelectric responses of the…

材料科学 · 物理学 2024-12-10 Sophie F. Weber , Andrea Urru , Nicola A. Spaldin

In this article we apply the random forest machine learning model to classify 1D topological phases when strong disorder is present. We show that using the entanglement spectrum as training features the model gives high classification…

无序系统与神经网络 · 物理学 2020-01-30 Ye Zhuang , Luiz H. Santos , Taylor L. Hughes

We show how off-resonant light scattering can provide quantitative information on antiferromagnetic ordering of a two-species fermionic atomic gas in a tightly-confined two-dimensional optical lattice. We analyze the emerging magnetic…

量子气体 · 物理学 2014-09-10 Francisco Cordobes Aguilar , Andrew F Ho , Janne Ruostekoski

The performance of nuclear reactors and other nuclear systems depends on a precise understanding of the neutron interaction cross sections for materials used in these systems. These cross sections exhibit resonant structure whose shape is…

核理论 · 物理学 2023-03-23 G. P. A. Nobre , D. A. Brown , S. J. Hollick , S. Scoville , P. Rodríguez

Energy minimization at T=0 and Monte Carlo simulations at T>0 have been performed for 2D and 3D random-field and random-anisotropy systems of up to 100 million classical spins. The main finding is that 3D random-anisotropy systems…

统计力学 · 物理学 2025-10-17 D. A. Garanin

We report the development of a hybrid numerical / analytical model capable of mapping the spatially-varying distributions of the local ferromagnetic resonance (FMR) frequency and dynamic magnetic susceptibility in a wide class of patterned…

介观与纳米尺度物理 · 物理学 2019-05-29 C. S. Davies , V. D. Poimanov , V. V. Kruglyak

Magnetic topological insulators and semi-metals have a variety of properties that make them attractive for applications including spintronics and quantum computation, but very few high-quality candidate materials are known. In this work, we…

Two-dimensional noncollinear magnetic states, such as spin-spiral magnets, offer an excellent platform for investigating fundamental phenomena, with potential for advancing stray-field-free spintronics. However, detection and…

介观与纳米尺度物理 · 物理学 2026-04-06 Fedor Nigmatulin , Greta Lupi , Jose L. Lado , Zhipei Sun

We use micromagnetic simulation to demonstrate layer-selective detection of magnetization directions from magnetic dots having two recording layers by using a spin-torque oscillator (STO) as a read device. This method is based on…

应用物理 · 物理学 2019-10-02 Taro Kanao , Hirofumi Suto , Koichi Mizushima , Rie Sato

Magnetic order and microwave absorption in amorphous ferromagnets and materials sintered from nanoscale ferromagnetic grains are investigated analytically and numerically within the random-anisotropy model. We show that a scaling argument…

无序系统与神经网络 · 物理学 2023-11-14 Eugene M. Chudnovsky , Dmitry A. Garanin