Clay weekly context brief for the Condensed Matter category (ISO week 2026-W39).

Clay tracks publications from the Condensed Matter feed list. Below are recent items from this category, each with its source and a short description of what the publication covers when one is available in the source feed.

Recent publications:
1. Learning-Induced Dynamical Transition in Recurrent Neural Networks
   Source: cond-mat.dis-nn (Disordered Systems and Neural Networks)
   Link: https://arxiv.org/abs/2609.19288
   Learning in recurrent neural networks can fundamentally reshape their underlying dynamics, transforming initially chaotic activity into stable task-dependent behavior.
2. Multiferroic Quantum Dot in an Artificial van der Waals Heterostructure
   Source: cond-mat.mes-hall (Mesoscale and Nanoscale Physics)
   Link: https://arxiv.org/abs/2609.19408
   Quantum dots (QDs) provide a versatile platform for engineering quantum-confined electronic states with functionalities relevant for optoelectronics, spintronics, and quantum technologies.
3. Comprehensive First-Principles Investigation of the Structural, Mechanical, Electronic, and Optical Properties of Homoelemental Phase T-GaN Monolayer
   Source: cond-mat.mtrl-sci (Materials Science)
   Link: https://arxiv.org/abs/2609.19192
   The exploration of non-hexagonal two-dimensional topologies has opened new possibilities for tailoring the properties of group III-V monolayers beyond those accessible through conventional honeycomb phases.
4. Universality of the $1/9$ Magnetization Plateau and Quantum-Disordered States in the Kagome Family $\mathrm{Cs_8AB_3Ti_{12}F_{48}}$
   Source: cond-mat.other (Other Condensed Matter)
   Link: https://arxiv.org/abs/2609.19572
   The microscopic origin of the low-field $1/9$ magnetization plateau in spin-$1/2$ kagome antiferromagnets remains unresolved.
5. Radial dam breaks in a two-dimensional droplet bearing environment
   Source: cond-mat.quant-gas (Quantum Gases)
   Link: https://arxiv.org/abs/2609.19508
   The controlled dynamical generation of radial dam break flows (DBFs) is demonstrated in two-dimensional droplet environments.
6. Sensitivity of Nucleation Thermodynamics and Kinetics to the Treatment of Long-Range Interactions
   Source: cond-mat.soft (Soft Condensed Matter)
   Link: https://arxiv.org/abs/2609.19646
   Nucleation rates are exponentially sensitive to the thermodynamic driving force and can therefore depend strongly on the treatment of long-range intermolecular interactions.
7. Collective Symmetry and Criticality from Single-Component Fluctuations
   Source: cond-mat.stat-mech (Statistical Mechanics)
   Link: https://arxiv.org/abs/2609.19629
   Symmetry plays a fundamental role in modern physics by guiding the classification of phases and the construction of effective theories of critical systems.
8. Encapsulation epitaxy of air-stable monolayer superconducting films for quantum circuits and qubits
   Source: cond-mat.supr-con (Superconductivity)
   Link: https://arxiv.org/abs/2609.19321
   Two-dimensional (2D) superconductors are an emerging platform for strongly correlated physics and quantum information science.
9. Assessing the Reliability of Anomalous Hall Conductivity Extraction in GdAlSi
   Source: cond-mat.str-el (Strongly Correlated Electrons)
   Link: https://arxiv.org/abs/2609.17872
   We examine the different methods of extracting the anomalous Hall conductivity using SrRuO$_3$ and GdAlSi.
10. When higher-order interactions matter: reducibility, parsimony, and microscopic organization
   Source: cond-mat.dis-nn (Disordered Systems and Neural Networks)
   Link: https://arxiv.org/abs/2609.20039
   The current debate on higher-order interactions raises a fundamental question: when can systems organized through group interactions be faithfully represented within a graph-based formalism?
11. Quantum transport across normal-superlattice-normal graphene junctions: Fabry-P\'erot interference, Hofstadter butterfly, and supersnake states
   Source: cond-mat.mes-hall (Mesoscale and Nanoscale Physics)
   Link: https://arxiv.org/abs/2609.19627
   Electrostatic modulation of graphene provides a tunable route to engineering miniband structures.
12. Melting of corundum ({\alpha}-Al2O3) under compression to 8 GPa: A decreasing melting slope
   Source: cond-mat.mtrl-sci (Materials Science)
   Link: https://arxiv.org/abs/2609.19229
   Melting of corundum ({\alpha}-Al2O3) has been studied under compression up to 8 GPa using in situ electrical resistivity measurements.
13. Spin-Axis Dynamic Locking
   Source: cond-mat.other (Other Condensed Matter)
   Link: https://arxiv.org/abs/2509.18476
   The all-electrical realization of highly spin-polarized currents and their efficient conversion into pure spin currents remains a fundamental challenge in spintronics.
14. Odd/Even or Half ? Entanglement Anomaly in the Bose-Hubbard model
   Source: cond-mat.quant-gas (Quantum Gases)
   Link: https://arxiv.org/abs/2609.19884
   The area law relates the bipartite entanglement entropy of a quantum many-body ground state to the size of the boundary between the subsystems, but the geometry of this boundary is rarely discussed.
15. Spontaneous filament formation and network self-assembly via active phase separation
   Source: cond-mat.soft (Soft Condensed Matter)
   Link: https://arxiv.org/abs/2609.19800
   We introduce Active Model H$^{-}$, a scalar phase-field model of non-equilibrium phase separation in the overdamped hydrodynamic limit, and show that it produces filamentous networks with enhanced connections and arrested coarsening, a morphology not observed in existing scalar active field theories.
16. Higher-Order Interactions in Complex Systems: Mechanisms, Behaviour, Representation and Reducibility
   Source: cond-mat.stat-mech (Statistical Mechanics)
   Link: https://arxiv.org/abs/2609.20142
   Higher-order interactions couple three or more elements in ways that cannot be decomposed into pairwise contributions.
17. Multiple Andreev Reflection Spectroscopy of Spin-Resolved Proximity States
   Source: cond-mat.supr-con (Superconductivity)
   Link: https://arxiv.org/abs/2609.19380
   We predict a coherent multiple Andreev reflection regime in superconducting nanoconstrictions with parallel proximity-induced exchange fields in the electrodes.
18. Optical investigation of the electronic structure of a ferromagnetic Weyl semimetal CeAlSi
   Source: cond-mat.str-el (Strongly Correlated Electrons)
   Link: https://arxiv.org/abs/2609.18592
   To investigate electronic states during the ferromagnetic transition in a magnetic Weyl semimetal CeAlSi, we measured temperature-dependent optical conductivity [$\sigma_1(\omega)$] spectra and compared them with DFT+DMFT band calculations.
19. Learning the Emergent Bulk Geometry of the Three Dimensional Ising Model
   Source: cond-mat.dis-nn (Disordered Systems and Neural Networks)
   Link: https://arxiv.org/abs/2609.20210
   We use Monte Carlo data for the three-dimensional Ising model at the critical temperature to predict an emergent radial geometry of the bulk using machine learning.
20. Observation of Dyakonov-Perel-type magnon spin relaxation in uniaxial antiferromagnetic insulators
   Source: cond-mat.mes-hall (Mesoscale and Nanoscale Physics)
   Link: https://arxiv.org/abs/2609.19700
   Long-distance transport of magnon spin currents in antiferromagnetic (AFM) insulators has attracted tremendous attention recently, however, the AFM magnon spin relaxation mechanisms remain elusive.
21. Electron $g$-value comparison of paramagnetic muonium and hydrogen centers in rutile TiO$_2$
   Source: cond-mat.mtrl-sci (Materials Science)
   Link: https://arxiv.org/abs/2609.19338
   Muonium (Mu) is widely used as a model for isolated hydrogen in condensed matter, but whether its electronic state is truly equivalent to that of hydrogen remains to be tested with an orbital-sensitive probe.
22. Antisymmetric spontaneous resistivity anisotropy due to hard-axis collapse in polycrystalline Co thin films
   Source: cond-mat.other (Other Condensed Matter)
   Link: https://arxiv.org/abs/2605.27099
   We investigate magnetoresistance phenomena associated with the magnetization hard-axis collapse in polycrystalline Co thin films.
23. Fragmentation of Quantum Fluid in dipolar Bose-Einstein condensate
   Source: cond-mat.quant-gas (Quantum Gases)
   Link: https://arxiv.org/abs/2609.20013
   In this article, we study the dipolar Bosonic quantum fluid.
24. The hypoexponential form for the fiber-length distribution in thermoplastic composites revisited: finite initial length, cascade fracture, and its mechanistic
   Source: cond-mat.soft (Soft Condensed Matter)
   Link: https://arxiv.org/abs/2609.20312
   In a previous work [Masubuchi et al., Compos.
25. Landau diamagnetism and the de Haas-van Alphen effect from a single geometric construction
   Source: cond-mat.stat-mech (Statistical Mechanics)
   Link: https://arxiv.org/abs/2609.20146
   Landau diamagnetism is usually derived from the grand canonical potential, a calculation that yields the correct susceptibility but little physical insight, while the rule that extremal cross sections govern the de Haas-van Alphen (dHvA) oscillations is commonly asserted rather than exhibited.
26. Surface-condition-mediated supercooling of the A-B transition in confined superfluid helium-3
   Source: cond-mat.supr-con (Superconductivity)
   Link: https://arxiv.org/abs/2609.19471
   Chiral $p$-wave superconductors and superfluids are central model systems in the search for topological quantum matter, but in reduced dimensions their properties are inseparable from the boundary conditions imposed by surrounding surfaces.
27. Orbital-Induced Peierls Transitions: How Orbitals Orchestrate Lattice Instability
   Source: cond-mat.str-el (Strongly Correlated Electrons)
   Link: https://arxiv.org/abs/2609.18614
   The Peierls transition is typically regarded as a phenomenon inherent to one-dimensional (1D) materials.
28. Disorder-induced modulation of the nonlinear Hall effect in Weyl semimetals
   Source: cond-mat.dis-nn (Disordered Systems and Neural Networks)
   Link: https://arxiv.org/abs/2609.20471
   We study the effects of impurity scattering on the nonlinear Hall response of Weyl semimetals within the semiclassical Boltzmann approach.
29. Highly uniform first-electron position in qubit arrays fabricated on dedicated QSOI(R) 300mm commercial platform
   Source: cond-mat.mes-hall (Mesoscale and Nanoscale Physics)
   Link: https://arxiv.org/abs/2609.20043
   We report progress toward the development of a quantum silicon-on-insulator (QSOI(R)) technology compatible with 300mm CMOS fabrication and adapted from the 28nm Fully-Depleted SOI (28nm FD-SOI) platform for scalable quantum computing.

Sources in this brief: cond-mat.dis-nn (Disordered Systems and Neural Networks); cond-mat.mes-hall (Mesoscale and Nanoscale Physics); cond-mat.mtrl-sci (Materials Science); cond-mat.other (Other Condensed Matter); cond-mat.quant-gas (Quantum Gases); cond-mat.soft (Soft Condensed Matter); cond-mat.stat-mech (Statistical Mechanics); cond-mat.str-el (Strongly Correlated Electrons); cond-mat.supr-con (Superconductivity).
Selected 29 of 319 available items for this weekly brief.