Explore the fascinating intersection where quantum materials meet the complexity of everyday environments in the Cond-Mat — Mes-Hall section. This field investigates how tiny particles behave when caught between the orderly world of single atoms and the chaotic nature of bulk matter, revealing the hidden rules that govern electricity, magnetism, and heat in novel substances.

Gist.Science brings these cutting-edge discoveries to you directly from arXiv, the leading repository for physics preprints. We process every new submission in this category as soon as it appears, offering both straightforward, plain-language explanations and deep technical summaries to help researchers and curious minds alike grasp the latest breakthroughs without getting lost in dense equations.

Below are the most recent papers in this dynamic area of condensed matter physics, ready for you to explore.

🔬 mesoscale physics

A new skyrmion topological transition driven by higher-order exchange interactions in Janus MnSeTe

This study reveals a novel "ferric" topological transition in single-layer Janus MnSeTe driven by higher-order exchange interactions that specifically modify the Bloch point while leaving skyrmion stability largely governed by Dzyaloshinskii-Moriya interaction, establishing the material as a robust platform for 2D skyrmionics with exceptionally high energy barriers.

Megha Arya, Moritz A. Goerzen, Lionel Calmels, Rémi Arras, Soumyajyoti Haldar, Stefan Heinze, Dongzhe Li2026-05-21
🔬 mesoscale physics

Morphological evolution of a semiconductor surface driven by irradiation-induced anisotropic plastic flow

This paper proposes a generalized Kuramoto-Sivashinsky-type equation based on irradiation-induced anisotropic plastic flow ("ion-hammering") to provide a comprehensive theoretical model that quantitatively and qualitatively explains the formation of nano-patterns on irradiated silicon surfaces across various ion species and energies.

Tyler P. Evans, Scott A. Norris2026-05-21
🔬 applied physics

Mie-tronics supermodes and symmetry breaking in nonlocal metasurfaces

This paper demonstrates that controlled symmetry breaking in finite-size Mie-resonator arrays can paradoxically enhance optical confinement and Q-factors by strengthening nonlocal coupling pathways, thereby unifying scattering and diffraction theories to enable advanced light manipulation and polarization conversion in nonlocal metasurfaces.

Thanh Xuan Hoang, Ayan Nussupbekov, Jie Ji, Daniel Leykam, Jaime Gomez Rivas, Yuri Kivshar2026-05-21
🔬 materials science

Modeling phase separation in polymer-derived carbonitride ceramics through extended machine learning molecular dynamics

This study employs a machine learning interatomic potential trained on over 9,000 configurations to simulate large-scale molecular dynamics of silicon carbonitride systems, revealing that thermal treatment drives phase separation where defective carbon rings mediate the nucleation of graphene-like sheets within the amorphous matrix, thereby explaining the material's unique hybrid properties.

Fabien Mortier, Sylvian Cadars, Olivier Masson, Mauro Boero, Guido Ori, Yun Wang, Samuel Bernard, Assil Bouzid2026-05-21
🔬 mesoscale physics

An AI-driven robotic system for two-dimensional hetero-assemblies

This paper presents an AI-driven robotic system that automates the high-precision fabrication of two-dimensional van der Waals heterostructures using reinforcement learning, successfully demonstrating the scalable production of magic-angle twisted bilayer graphene exhibiting unconventional superconductivity.

Xiaoxi Li, Jinkun He, Haojie Liu, Xipeng Liu, Zewen Wu, Jing Li, Kai Zhao, Shan Li, Xingdan Sun, Xiaoxue Fan, Zhiren Xio (…)2026-05-21
🔬 materials science

Tuning the low-energy band structure in twisted bilayer WSe2

Using nano-ARPES, researchers demonstrate that while the momentum positioning of valence band maxima in twisted bilayer WSe2 remains fixed, the twist angle can be used to tune the energetic separation between hole bands at the K and Γ points by over 100 meV, offering a pathway to control band gaps and spin-dependent electron-phonon coupling in 2D devices.

T. -H. -Y. Vu, O. J. Clark, N. H. Jo, J. Blyth, Q. Li, C. Jozwiak, A. Bostwick, J. B. Muir, L. Jia, J. A. Davis, I. Di B (…)2026-05-21