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

Revealing Wavelength- and Size-Dependent CO2 Reduction Selectivity via Operando Scanning Photo-Electrochemical Microscopy

This study utilizes operando scanning photoelectrochemical microscopy and theoretical calculations to demonstrate that photon energy and nanostructure geometry jointly govern CO2 reduction selectivity on plasmonic Au/p-GaN photocathodes by modulating hot-carrier energy and transport pathways to favor CO production over H2 evolution.

Fatemeh Kiani, Milad Sabzehparvar, Priscila Vensaus, Elif Nur Dayi, Olga D'Anania, Tarique Anwar, Nuria Lopez, Ravishank (…)2026-06-09
🔬 condensed matter

The ββ-decay spectrum of Tritiated graphene: combining nuclear quantum mechanics with Density Functional Theory

This paper presents a multi-methodological study combining Density Functional Theory with nuclear quantum mechanics to analyze how graphene substrates influence the β\beta-decay spectrum of tritium, offering critical insights for optimizing hosting materials in future neutrino experiments.

Andrea Casale, Angelo Esposito, Guido Menichetti, Valentina Tozzini2026-06-08
🔬 mesoscale physics

Probing the Dynamics of Two-Level System Defect Ensembles via Broadband Cryogenic Transient Dielectric Spectroscopy

This paper introduces Broadband Cryogenic Transient Dielectric Spectroscopy (BCTDS), a novel wafer-level technique that utilizes transient phase dynamics under strong microwave excitation to characterize the frequency-dependent behavior and thermocycling-induced shifts of two-level system (TLS) defects in dielectrics, thereby offering a powerful tool for understanding decoherence sources in superconducting quantum circuits.

Qianxu Wang, Juan S. Salcedo-Gallo, Sara Magdalena Gómez, Roy Leibovitz, Jake Freeman, Sofía Ábrego, Simon A. Agnew, Wil (…)2026-06-08
🔬 materials science

Matching Terahertz and Hall Mobilities as a Hallmark of Intrinsic Charge Transport in Metal-Halide Perovskites

This study demonstrates that intrinsic charge transport can extend across macroscopic lengths in epitaxial CsPbBr3_{3} single crystals by showing quantitative agreement between local terahertz and macroscopic Hall mobilities, thereby establishing a robust methodology for benchmarking intrinsic mobility in soft-lattice semiconductors.

Dmitry R. Maslennikov, Ben P. Carwithen, Vladimir V. Bruevich, Yichao Cai, Davide Nodari, Navendu Mondal, Xijia Zheng, B (…)2026-06-08
🔬 mesoscale physics

Non-Hermitian Crystalline Braid Topology from Hermitian Projection: A Zero-Mode Resonance Mechanism

This paper demonstrates that non-Hermitian crystalline braid topology can emerge from a fully Hermitian, topologically trivial parent lattice through a zero-mode-resonant projection mechanism, where coupling to a sublattice-imbalanced zero mode induces a singular self-energy that quantizes the complex Berry phase and generates finite-frequency braid transitions observable in topolectrical circuits.

Stefan {\DJ}or{\dj}ević, Vladimir Juričić2026-06-08