🔬 Category

cond-mat.str-el

1946 papers

This collection explores the fascinating world of condensed matter physics, specifically focusing on how the arrangement of atoms and electrons determines the electrical behavior of materials. From superconductors that carry current without resistance to complex semiconductors powering our modern devices, these studies reveal the hidden rules governing how matter conducts electricity. By examining the interplay between structure and electronic properties, researchers are uncovering the fundamental mechanisms that could lead to revolutionary new technologies.

Every day, Gist.Science scans arXiv for the latest preprints in this specialized subfield. We process each new entry to provide both a detailed technical breakdown for experts and a clear, plain-language summary for anyone curious about the science. This dual approach ensures that groundbreaking discoveries in structure-electronic relationships are accessible to everyone, regardless of their background.

Below are the most recent papers added to this category, offering a fresh look at how material structure dictates electronic function.

🔬 mesoscale physics

The Crossover from Ordinary to Higher-Order van Hove Singularity in a Honeycomb System: A Parquet Renormalization Group Analysis

This paper employs parquet renormalization group analysis to investigate the crossover from ordinary to higher-order van Hove singularities in honeycomb systems like bilayer and trilayer graphene, revealing how the merging of Fermi pockets and the resulting changes in density of states drive complex electronic ordering tendencies through the evolution, disappearance, and reemergence of renormalization group fixed points.

Yueh-Chen Lee, Dmitry V. Chichinadze, Andrey V. Chubukov2026-07-17
🔬 materials science

Giant Domain Walls and Intrinsic Heterogeneity in 214 Cuprate Superconductors

Using scanning three-dimensional X-ray diffraction, this study reveals that bulk La1.675_{1.675}Eu0.2_{0.2}Sr0.125_{0.125}CuO4_{4} cuprate superconductors possess a complex microstructure of broad tetragonal-like domain walls and fine orthorhombic-like stripes, fundamentally reshaping the understanding of structural and electronic heterogeneity in these materials.

Evie Ladbrook, Mark S. Senn, Jon Wright2026-07-17
🔬 condensed matter

Spinless charged excitation at the interface between a conventional topological insulator and a topological Mott insulator

Using extensive density-matrix renormalization group calculations on the triangular-lattice Hofstadter-Hubbard model, this study reveals that the interface between an integer quantum Hall state and a chiral spin liquid hosts a unique spinless charged excitation, while also characterizing fractionalization in the bulk chiral spin liquid and spin-triplet exciton formation in the integer quantum Hall phase.

Cesar A. Gallegos, Andrew J. Millis, Steven R. White2026-07-17
⚛️ quantum physics

Quantum many-body mixed phase space revealed by hybrid feedback control

This paper presents a hybrid quantum-classical feedback protocol implemented on a superconducting processor that autonomously discovers and stabilizes long-lived regular trajectories, thereby experimentally revealing a novel quantum many-body mixed phase space arising from nonlinear variational dynamics.

Hang Dong, Jie Ren, Andrew Hallam, Han Wang, Zhengyi Cui, Yiren Zou, Junlin Wang, Hekang Li, Qiujiang Guo, Zhen Wang, Le (…)2026-07-17
🔬 condensed matter

Spin fluctuation-mediated unconventional superconductivity in ThFeAsN from first-principles

Using first-principles calculations that fully account for electron-phonon coupling, Coulomb repulsion, and spin fluctuations, this study identifies ThFeAsN as a spin-fluctuation-mediated multiband superconductor with a calculated critical temperature of 22.4 K and a dxyd_{xy}-wave order parameter that aligns with experimental observations.

Guang-Yu Guo, Jau-Wen Liu, Mitsuaki Kawamura2026-07-17
🔬 condensed matter

Emergence of a monopole phase in the J1−J2J_1{-}J_2 Heisenberg model on the triangular lattice for small magnetic fields

Using variational Monte Carlo and field-theory approaches, this study reveals that a condensate of gapless monopoles emerges as a stable phase with finite scalar chirality in the J1−J2J_1{-}J_2 Heisenberg model on a triangular lattice under small magnetic fields, particularly around the J2/J1=1/8J_2/J_1=1/8 ratio where a spin-liquid phase was previously suspected.

Sasank Budaraju, Shi Feng, Josef Willsher, Johannes Knolle, Frank Pollmann, Federico Becca2026-07-17
🔬 materials science

Ridge-Spin-Layer Coupling and Emergent Ridgetronics in 2D Altermagnets

This paper introduces "ridge-spin-layer coupling" in 2D altermagnets, a phenomenon where continuous lines of dispersionless electronic states lock to spin and layer degrees of freedom to enable controllable "ridgetronics" for layer-selective switching and spin-filtered transport, with Mg2_2Mo2_2(PO5_5)2_2, Ca(FeP)2_2, and Mg2_2V2_2(SO5_5)2_2 identified as candidate materials.

Mu Tian, Run-Wu Zhang, Chaoxi Cui, Zhi-Ming Yu, Yugui Yao2026-07-17
🔬 mesoscale physics

Competing Orders Driven by Wigner Crystal Phase in Rhombohedral Graphene

This study identifies a Wigner crystal phase as the origin of highly insulating states in rhombohedral pentalayer graphene and demonstrates how this phase drives the emergence of competing magnetic-field-stabilized superconductivity and unconventional reentrant quantum Hall states.

Zekang Zhou, Kilian Krötzsch, Raphaël Ayache, Yonggen Li, Sandeep Joy, Kenji Watanabe, Takashi Taniguchi, Moty Heiblum (…)2026-07-17