cond-mat.mes-hall papers

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

Observation of metastable chiral domain walls in a topological magnet

Using resonant ultrafast pump-probe spectroscopy on a twisted MoTe2 moiré superlattice, researchers discovered metastable chiral domain walls in a topological magnet that exhibit unique spin-valley textures governed by the interplay between real-space topological winding and momentum-space quantum geometry, offering new insights into the stability and nonequilibrium dynamics of quantum anomalous Hall systems.

Richen Xiong, Chenxin Qin, Zhaoyu Han, Nisarg Chadha, Qiang Gao, William Holtzmann, Weijie Li, Jiaqi Cai, Yi Guo, Weihan (…)2026-08-10

🔬 materials science

Extracting the full conductivity tensor in a rectangular sample

This paper proposes a simple experimental procedure based on conformal mapping to extract the full conductivity tensor, including the principal axes angle, for anisotropic 2D materials in rectangular geometries, a method validated by numerical simulations and known limiting cases.

Julia Gelfond, Oskar Vafek2026-08-10

🔬 materials science

Cross-Geometry Transferability Assessment of Universal Machine Learning Interatomic Potentials: From Bulk Materials to Atomic Nanowires

This study evaluates the cross-geometry transferability of pretrained machine learning interatomic potentials for ZrO2, revealing that while fine-tuning outperforms training from scratch, zero-shot models suffer significant degradation in low-coordination nanostructures and that average error metrics fail to reliably predict specific physical property performance, necessitating geometry-diverse data and independent physical validations for robust adaptation.

Pedro H. M. Zanineli, Bruno Focassio, Gabriel R. Schleder2026-08-10

🔬 mesoscale physics

Floquet spintronics: tuning the current-induced spin polarization of topological surface states with light

This paper demonstrates that the current-induced spin polarization of topological surface states can be controlled and even reversed by varying the intensity of high-frequency, circularly polarized light, effectively tuning their spin texture via Floquet engineering.

Youngjae Kim, Aayushi Agrawal, Kwon Park2026-08-10

🔬 mesoscale physics

Multimode phonon-mediated enhancement of entanglement and competing synchronization in cavity magnomechanics

This paper proposes a multimode phonon-mediated mechanism in cavity magnomechanical systems that monotonically enhances steady-state entanglement between hybrid polariton modes while revealing distinct scaling behaviors in quantum synchronization, thereby overcoming the limitations of conventional single-mode linear interactions.

Z. Imara, Jia-Xin Peng, E. K. Berinyuy, S. K. Singh, A. El Allati2026-08-10

🔬 mesoscale physics

Out-of-equilibrium spin-valley dynamics of ferromagnets in topological Chern bands

By utilizing circularly polarized light to create and image magnetic domains in twisted MoTe2 bilayers, this study reveals that ferromagnets in topological Chern bands exhibit qualitatively distinct, thermally activated melting dynamics with significantly longer relaxation times compared to metallic domains, highlighting the profound influence of topology and strong correlations on out-of-equilibrium spin-valley evolution.

J. James, I. Krastilevskiy, F. Pichler, L. Wang, A. Iafarova, F. Menzel, K. Watanabe, T. Taniguchi, C. Kuhlenkamp, M. Kn (…)2026-08-10

🔬 mesoscale physics

Topological surface altermagnets in SSH-stacked magnetic layers

This paper proposes that stacking magnetic layers in a Su-Schrieffer-Heeger pattern creates a topological surface altermagnet within a standard antiferromagnetic bulk, where boundary symmetry breaking generates protected surface states that can be detected via a perpendicular electric field.

Rui Chen, Bin Zhou, Dong-Hui Xu2026-08-10

🔬 optics

Perfect absorption by metal-contacted two-dimensional systems with ultra-proximate reflectors

This paper demonstrates that perfect electromagnetic absorption in two-dimensional electron systems can be achieved by combining periodic metal contacts with ultra-proximate reflectors, enabling 100% absorbance even at sub-wavelength distances and without requiring high electron mobility.

Kirill Kapralov, Vladislav Atlasov, Alina Khisameeva, Viacheslav Muravev, Dmitry Svintsov2026-08-10

🔬 optics

Crossing over universal scaling laws in two-dimensional driven dissipative condensates

This study demonstrates that two-dimensional driven-dissipative polariton condensates exhibit a tunable crossover between Edwards-Wilkinson and Kardar-Parisi-Zhang universality classes, establishing them as a versatile platform for exploring non-equilibrium scaling laws.

Q. Fontaine, F. Helluin, M. Escalera, D. Pinto Dias, A. Lemaître, M. Morassi, M. Wouters, A. Minguzzi, L. Canet, S. Rave (…)2026-08-10

🔬 mesoscale physics

Study of polarization of even-denominator fractional quantum Hall states in SU(4) Graphene

This paper investigates the polarization of even-denominator fractional quantum Hall states at filling fractions $\nu = 1/2$ and $1/4$ in monolayer graphene by applying Chern-Simons gauge field theory to calculate ground state energies and identify the lowest energy configurations among various polarized states.

Moumita Indra, Dwipesh Majumder2026-08-07

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