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.

Cryogenic Magnetization Dynamics in Chemically Stabilized, Tensile-Strained Ultrathin Yttrium Iron Garnets with Tunable Magnetic Anisotropy

This study demonstrates that growing tensile-strained ultrathin Yttrium Iron Garnet (YIG) films on Gadolinium Scandium Gallium Garnet (GSGG) substrates suppresses interfacial interdiffusion through enhanced chemical stability, thereby achieving ultralow damping and tunable magnetic anisotropy at cryogenic temperatures essential for advanced spintronic applications.

Jihyung Kim, Dongchang Kim, Seung-Gi Lee, Yung-Cheng Li, Jae-Chun Jeon, Jiho Yoon, Sachio Komori, Ryotaro Arakawa, Tomoyasu Taniyama, Stuart S. P. Parkin, Kun-Rok Jeon2026-03-10🔬 cond-mat.mes-hall

Quantum Droplets of Light in Semiconductor Microcavities

This paper predicts the existence of self-bound quantum droplets formed by a spin mixture of exciton-polaritons in atomically thin semiconductor microcavities, where tunable interactions near a biexciton Feshbach resonance balance mean-field attraction with quantum fluctuation-induced repulsion.

Matteo Caldara, Olivier Bleu, Francesca Maria Marchetti, Jesper Levinsen, Meera M. Parish2026-03-10🔬 cond-mat.mes-hall

Metastable states of 2D-material-on-metal-islands structures revealed by thermal cycling

This study reveals that thermal cycling induces irreversible degradation in the van der Waals bonding and electronic transport of hBN/graphene heterostructures on metallic islands due to thermal-expansion-driven delamination and interfacial residue redistribution, while demonstrating that hot pressing can restore contact and highlighting the critical role of interfacial stability in 2D device applications.

V. A. Ievleva, V. A. Prudkoglyad, L. A. Morgun, A. Yu. Kuntsevich2026-03-10🔬 cond-mat.mes-hall

Exciton Berryology

This paper establishes a gauge-invariant framework for defining unique electron and hole exciton Berry phases via a projected position operator, enabling the numerical calculation of exciton polarization and the characterization of topologically distinct exciton bands, including shift excitons, through crystalline inversion and $C_2\mathcal{T}$ symmetries.

Henry Davenport, Johannes Knolle, Frank Schindler2026-03-10🔬 cond-mat.mes-hall

Interaction-driven flat band and charge order in Fe5GeTe2

This study demonstrates that in the van der Waals magnet Fe5GeTe2, strong electronic correlations drive the formation of a flat band at the Fermi level, which in turn induces a $\sqrt{3}\times\sqrt{3}\,R30^\circ$ charge order, establishing a paradigm where interaction-driven flat bands promote large-scale electronic ordering.

Qiang Gao, Gabriele Berruto, Khanh Duy Nguyen, Chaowei Hu, Paul Malinowski, Haoran Lin, Beomjoon Goh, Bo Gyu Jang, Xiaodong Xu, Peter Littlewood, Jiun-Haw Chu, Shuolong Yang2026-03-10🔬 cond-mat.mes-hall

Berry Curvature of Low-Energy Excitons in Rhombohedral Graphene

This paper introduces an improved low-energy two-band model for rhombohedral pentalayer graphene to demonstrate that excitons possess electrically tunable, quantized Wannier function centers and inherit Berry curvature, establishing the material as a versatile platform for exploring excitonic topology and edge modes in moiré systems.

Henry Davenport, Frank Schindler, Johannes Knolle2026-03-10🔬 cond-mat.mes-hall

Noninvasive and nonadiabatic quantum Maxwell demon

This paper proposes a noninvasive quantum Maxwell demon in a quantum dot system that utilizes an undetailed charge detector and Landau-Zener-Stückelberg-Majorana driving to achieve simultaneous power generation and cooling without continuous measurement or work investment, with optimal performance found in the nonadiabatic regime.

Lucas Trigal, Rafael Sánchez2026-03-10⚛️ quant-ph

Non-Hermitian quantum geometric tensor and nonlinear electrical response

This paper demonstrates that the complex-valued non-Hermitian quantum geometric tensor governs intrinsic nonlinear electrical responses in gapped systems, revealing a unique transport mechanism where finite wavepacket width fundamentally alters conductivity—a phenomenon strictly absent in Hermitian systems.

Kai Chen, Jie Zhu2026-03-10⚛️ quant-ph

Low-Noise Nanoscale Vortex Sensor for Out-of-Plane Magnetic Field Detection

This study presents a low-noise, sub-100 nm magnetic tunnel junction vortex sensor with a perpendicularly magnetized reference layer that achieves a wide dynamic range exceeding 200 mT and high sensitivity for out-of-plane magnetic field detection by leveraging vortex core dynamics to minimize defect-induced noise.

Ajay Jha, Alvaro Palomino, Stéphane Auffret, Hélène Béa, Ricardo C. Sousa, Liliana D. Buda-Prejbeanu, Bernard Dieny2026-03-10🔬 cond-mat.mtrl-sci

Spin currents in crystals with spin-orbit coupling: multi-band effects in an effective Hamiltonian formalism

This paper demonstrates that calculating spin currents in crystals with spin-orbit coupling requires a modified operator derived from iterative elimination of remote bands, as the standard definition based on group velocity fails to capture dominant interband mixing effects that can lead to qualitatively incorrect results.

K. V. Samokhin, M. Sigrist, M. H. Fischer2026-03-10🔬 cond-mat.mes-hall

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