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.

Localized-basis formulation of interacting Hamiltonians in flat topological bands: coherent states and coherent-like states for fractional physics

This paper proposes a unified framework for describing fractional quantum Hall systems and fractional Chern insulators by extending the concept of coherent states to Chern bands via "coherent-like states," enabling the construction of a localized-basis Hamiltonian that exhibits topological degeneracy and zero-energy ground states across both systems.

Nobuyuki Okuma2026-02-17🔬 cond-mat.mes-hall

Quantitative models for excess carrier diffusion and recombination in STEM-EBIC experiments on semiconductor nanostructures

This paper presents a quantitative model combining analytical and finite element approaches to analyze excess carrier diffusion and recombination in STEM-EBIC experiments on semiconductor nanostructures, successfully demonstrating its ability to precisely determine the bulk diffusion length of SrTi0.995Nb0.005O3.

Tobias Meyer, Christoph Flathmann, David A. Ehrlich, Patrick Paap-Peretzki, Jonas Lindner, Christian Jooß, Michael Seibt2026-02-17🔬 physics.app-ph

Polar unidirectional magnetotransport in pp-type tellurene from quantum geometry

This paper demonstrates that pp-type tellurene exhibits a polar unidirectional magnetoresistance arising from quantum metric dipoles induced by remote Weyl nodes, a finding that extends the understanding of electric magnetochiral anisotropy to hole regimes and explains experimental angular dependencies through combined chiral and polar transport mechanisms.

Claudio Iacovelli, Pierpaolo Fontana, Victor Velasco, Chang Niu, Peide D. Ye, Marcus V. O. Moutinho, Caio Lewenkopf, Marcello B. Silva Neto2026-02-17🔬 cond-mat.mes-hall

Coulomb Interaction in Atomically Thin Semiconductors and Density-Independent Exciton-Scattering Processes

This paper derives and reviews the second-quantized Coulomb interaction Hamiltonian for atomically thin semiconductors within a quantum-kinetic framework, linking *ab initio* screening methods to effective-mass models to elucidate the roles of Umklapp processes, local-field effects, and density-independent scattering in the exciton energy landscape.

Henry Mittenzwey, Andreas Knorr, Thorsten Deilmann2026-02-17🔬 cond-mat.mes-hall

Ion Implantation Enhanced Nucleation Facilitates Heat Transport across Atomically-Sharp Semiconductor Interfaces

This study demonstrates that ion implantation-enhanced nucleation epitaxy creates atomically sharp AlN-SiC interfaces with ultrahigh thermal boundary conductance (~800 MW/m²-K) by facilitating both elastic phonon transmission and inelastic scattering via unique interfacial phonon modes, offering a promising solution for thermal management in next-generation electronics.

Jinwen Liu, Zifeng Huang, Lina Yang, Yachao Zhang, Xingqiang Zhang, Kun Zhang, Xufei Guo, Yuxiang Wang, Hong Zhou, Jincheng Zhang, Wei Wang, Yue Hao, Zhe Cheng2026-02-17🔬 cond-mat.mes-hall

Influence of Disorder on Exciton Transfer in a Quantum Dot Chain with Short-Range Interaction and a Side-Coupled Defect

This paper investigates how structural disorder affects exciton propagation in a quantum dot chain with a side-coupled defect, establishing a criterion for the localized-to-delocalized phase transition and demonstrating that dynamic localization under pulsed excitation aligns with the system's stationary state properties.

Aleksey Vlasov, Pavel Golovinski2026-02-17🔬 cond-mat.mes-hall

Interaction-Enabled Two- and Three-Fold Exceptional Points

This paper proposes and demonstrates the existence of novel interaction-enabled two- and three-fold exceptional points in bosonic and fermionic systems, which are topologically protected by various symmetries and emerge only when interactions are present, leading to observable qualitative changes in loss rates and extending beyond conventional non-Hermitian topological classifications.

Musashi Kato, Tsuneya Yoshida2026-02-17🔬 cond-mat.mes-hall

Nonlinear effects in a strongly coupled Nanoelectromechanical System

This study develops a voltage-dependent Hamiltonian framework for a strongly coupled nanoelectromechanical resonator that explains experimental phenomena like avoided crossings and tunable frequency combs, while mapping their underlying dynamical transitions, bifurcations, and coherence properties to enable the engineering of highly tunable and functional nanodevices.

Narges Tarakameh Samani, Farhad Shahbazi, Mehdi Abdi2026-02-17🔬 cond-mat.mes-hall