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.

Quantifying the quantum nature of high spin YSR excitations in transverse magnetic field

Using ultra-low temperature scanning tunneling microscopy and zero-bandwidth modeling, this study characterizes the quantum nature of Yu-Shiba-Rusinov excitations in high-spin manganese phthalocyanine molecules on a lead film under transverse magnetic fields, distinguishing between isolated and coupled spin systems to elucidate the roles of magnetic anisotropy and exchange interactions in their quantum phases.

Niels P. E. van Mullekom, Benjamin Verlhac, Werner M. J. van Weerdenburg, Hermann Osterhage, Manuel Steinbrecher, Katharina J. Franke, A. A. Khajetoorians2026-03-31🔬 cond-mat.mes-hall

Atomic short-range order control of GeSn as a new degree of freedom for band engineering

This study demonstrates that controlling chemical short-range order (SRO) in GeSn alloys through growth method selection (MBE vs. CVD) serves as a new degree of freedom for band engineering, enabling significant bandgap reduction beyond what is achievable by composition alone.

Shang Liu, Yunfan Liang, Nirosh M. Eldose, Shunda Chen, Xiaochen Jin, Haochen Zhao, Manoj Shah, Jin-Hee Bae, Omar Concepcion, Fernando M. de Oliveira, Ilias Bikmukhametov, Xiaoxin Wang, Yuping Zeng, D (…)2026-03-31🔬 cond-mat.mes-hall

Acoustic and Optical Phonon Frequencies and Acoustic Phonon Velocities in Silicon-Doped Aluminum Nitride Thin Films

This study utilizes Brillouin-Mandelstam and Raman spectroscopy to demonstrate that while Si doping in AlN thin films causes non-monotonic changes in optical phonon frequencies due to strain and dislocation variations, it results in a monotonic decrease in acoustic phonon velocities, a finding critical for optimizing high-power semiconductor devices.

Dylan Wright, Dinusha Herath Mudiyanselage, Erick Guzman, Xuke Fu, Jordan Teeter, Bingcheng Da, Fariborz Kargar, Houqiang Fu, Alexander A. Balandin2026-03-31🔬 cond-mat.mes-hall

Quantifying superlubricity of bilayer graphene from the mobility of interface dislocations

This paper introduces an atomically informed dynamic Frenkel-Kontorova model that quantifies the superlubricity of heterodeformed bilayer graphene by linking macroscopic interface friction to the kinetic properties of interface dislocations, enabling high-throughput prediction of friction drag coefficients across complex deformation spaces.

Md Tusher Ahmed, Moon-ki Choi, Harley T Johnson, Nikhil Chandra Admal2026-03-31🔬 cond-mat.mes-hall

Resonant Edelstein and inverse-Edelstein effects, charge-to-spin conversion, and spin pumping from chiral-spin modes

This paper investigates how electron correlations induce resonant enhancements in the Edelstein and inverse-Edelstein effects via in-plane chiral-spin modes in two-dimensional electron systems, demonstrating their potential for resonant charge-to-spin conversion and directional spin control in spintronics applications.

Mojdeh Saleh, Abhishek Kumar, Dmitrii L. Maslov, Saurabh Maiti2026-03-31🔬 cond-mat.mes-hall

Odd-parity ground state in dilute Yu-Shiba-Rusinov dimers and chains

By constructing Fe dimers and chains on 2H-NbSe2_2 using a scanning tunneling microscope, the study demonstrates that an odd-parity ground state in dilute Yu-Shiba-Rusinov systems serves as a precursor for topological superconductivity, while clarifying that observed spectral variations in the resulting bands arise from quantum spin effects and ferromagnetic coupling rather than Majorana modes.

Lisa M. Rütten, Harald Schmid, Werner M. J. van Weerdenburg, Eva Liebhaber, Kai Rossnagel, Katharina J. Franke2026-03-31🔬 cond-mat.mes-hall

Heat operator approach to quantum stochastic thermodynamics in the strong-coupling regime

This paper introduces a non-perturbative "heat operator" framework that maps stochastic heat exchange in strongly coupled open quantum systems to a unitary evolution problem solvable via tensor networks, enabling the efficient computation of heat fluctuations and the observation of thermal rectification in Ohmic spin-boson models across arbitrary spectral densities and temperature regimes.

Sheikh Parvez Mandal, Mahasweta Pandit, Khalak Mahadeviya, Mark T. Mitchison, Javier Prior2026-03-31🔬 cond-mat.mes-hall

Surface hopping simulations show valley depolarization driven by exciton-phonon resonance

This study employs mixed quantum-classical surface hopping simulations to demonstrate that valley depolarization in monolayer MoS2_2 is primarily driven by a resonance between the dominant optical phonon branch and the lowest exciton band, which activates a Maialle–Silva–Sham mechanism and yields polarization times consistent with experimental measurements.

Alex Krotz, Roel Tempelaar2026-03-31🔬 cond-mat.mes-hall

Impact of the honeycomb spin-lattice on topological magnons and edge states in ferromagnetic 2D skyrmion crystals

This theoretical study reveals that ferromagnetic skyrmion crystals on a honeycomb spin lattice exhibit chiral topological edge states in the first magnon gap and potential frequency-multiplexed transport, demonstrating how non-Bravais lattice geometry fundamentally alters magnon topology compared to conventional Bravais lattices.

Doried Ghader, Bilal Jabakhanji2026-03-31🔬 cond-mat.mes-hall