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.

Nanoscale Electronic Phase Separation Driven by Fe-site Ordering in Fe\textsubscript{5-x}GeTe\textsubscript{2}

By combining high-resolution scanning tunneling microscopy with density functional theory, this study reveals that Fe-site ordering in the van der Waals ferromagnet Fe5x_{5-x}GeTe2_2 drives nanoscale electronic phase separation, where ordered Fe(1) domains exhibit metallic behavior while deficient regions display pseudogapped states due to symmetry-allowed Fe 3d-Te 5p orbital hybridization.

Shreyashi Sinha, Ayan Jana, Suchanda Mondal, Ravi Prakash Singh, Manoranjan Kumar, Sujit Manna2026-03-09🔬 cond-mat.mes-hall

Observation of first- and second-order dissipative phase transitions in a two-photon driven Kerr resonator

This paper presents the first comprehensive experimental and theoretical analysis of both first- and second-order dissipative phase transitions in a two-photon driven Kerr superconducting resonator, characterizing critical dynamics such as hysteresis and symmetry breaking to validate Liouvillian spectral theory for engineering criticality in quantum information applications.

Guillaume Beaulieu, Fabrizio Minganti, Simone Frasca, Vincenzo Savona, Simone Felicetti, Roberto Di Candia, Pasquale Scarlino2026-03-06⚛️ quant-ph

Criticality-Enhanced Quantum Sensing with a Parametric Superconducting Resonator

This paper demonstrates a critical quantum sensor using a superconducting parametric Kerr resonator that achieves quadratic precision scaling in frequency estimation near a second-order dissipative phase transition, thereby surpassing the linear scaling limit of classical protocols.

Guillaume Beaulieu, Fabrizio Minganti, Simone Frasca, Marco Scigliuzzo, Simone Felicetti, Roberto Di Candia, Pasquale Scarlino2026-03-06⚛️ quant-ph

Probing Boron Vacancy Defects in hBN via Single Spin Relaxometry

This paper demonstrates a nanoscale sensing technique that utilizes a single nitrogen-vacancy center in diamond to detect and map boron vacancy defects in hexagonal boron nitride by measuring changes in spin relaxation time (T1T_1) caused by cross-relaxation, thereby enabling optical-free characterization of 2D spin systems beyond the diffraction limit.

Alex L. Melendez, Ruotian Gong, Guanghui He, Yan Wang, Yueh-Chun Wu, Thomas Poirier, Steven Randolph, Sujoy Ghosh, Liangbo Liang, Stephen Jesse, An-Ping Li, Joshua T. Damron, Benjamin J. Lawrie, James (…)2026-03-06🔬 cond-mat.mes-hall

Evidence of Ultrashort Orbital Transport in Heavy Metals Revealed by Terahertz Emission Spectroscopy

Using terahertz emission spectroscopy on wedge-shaped heavy metal|Ni heterostructures, this study provides the first direct experimental evidence that orbital mean free paths in heavy metals are ultrashort (sub-nanometer scale) and shorter than spin counterparts, confirming that bulk inverse orbital Hall effect governs orbital-to-charge conversion.

Tongyang Guan, Jiahao Liu, Wentao Qin, Yongwei Cui, Shunjia Wang, Yizheng Wu, Zhensheng Tao2026-03-06🔬 cond-mat.mes-hall

HSG-12M: A Large-Scale Benchmark of Spatial Multigraphs from the Energy Spectra of Non-Hermitian Crystals

This paper introduces Poly2Graph, an automated pipeline for generating HSG-12M, a pioneering 16.7-million-scale dataset of spatial multigraphs derived from non-Hermitian crystal energy spectra, which bridges condensed matter physics and geometry-aware graph learning by preserving vital geometric information often discarded in existing benchmarks.

Xianquan Yan, Hakan Akgün, Kenji Kawaguchi, N. Duane Loh, Ching Hua Lee2026-03-06🔬 cond-mat.mes-hall

Janus skyrmion: Interfacial quasiparticle with two-faced helicity

This paper proposes the existence of a novel interfacial topological quasiparticle called the "Janus skyrmion," which features coexisting asymmetric helicity structures at magnetic interfaces and exhibits unique one-dimensional dynamics driven by spin currents and thermal fluctuations without the skyrmion Hall effect.

Xichao Zhang, Rui Zhang, Qiming Shao, Yan Zhou, Charles Reichhardt, Cynthia J. O. Reichhardt, Masahito Mochizuki2026-03-06🔬 cond-mat.mes-hall