Tootfinder

Cyclic loading of a heterogeneous non-linear poroelastic material
Zoe C. Godard, Derek E. Moulton, Sarah L. Waters
https://arxiv.org/abs/2506.05524 https:/…

Cyclic loading of a heterogeneous non-linear poroelastic material
Cyclic loading is a common feature in poroelastic systems, the material response depending non-trivially on the exact form of boundary conditions, pore structure, and mechanical properties. The situation becomes more complex when heterogeneity is introduced in the properties of the poroelastic material, yet heterogeneity too is common in physical poroelastic structures. In this paper, we analyse the behaviour of a soft porous material in response to a uniaxial cyclic stress or displacement, wit…

TransGI: Real-Time Dynamic Global Illumination With Object-Centric Neural Transfer Model
Yijie Deng, Lei Han, Lu Fang
https://arxiv.org/abs/2506.09909 http…

TransGI: Real-Time Dynamic Global Illumination With Object-Centric Neural Transfer Model
Neural rendering algorithms have revolutionized computer graphics, yet their impact on real-time rendering under arbitrary lighting conditions remains limited due to strict latency constraints in practical applications. The key challenge lies in formulating a compact yet expressive material representation. To address this, we propose TransGI, a novel neural rendering method for real-time, high-fidelity global illumination. It comprises an object-centric neural transfer model for material repres…

Above 20K conventional superconductivity in Cerium
Mohd Monish (Department of Physical Sciences, Indian Institute of Science Education,Research), Nikhlesh S Mehta (Department of Physical Sciences, Indian Institute of Science Education,Research), Mona Garg (Department of Physical Sciences, Indian Institute of Science Education,Research), Goutam Sheet (Department of Physical Sciences, Indian Institute of Science Education,Research)

Above 20K conventional superconductivity in Cerium
A high superconducting critical temperature (Tc) under normal laboratory conditions in a material that is chemically simple and stable, like an elemental metal, is a hitherto unattained goal of modern science and technology. Certain elemental metals are known to display reasonably high Tc only under extraordinarily high pressures where their spectroscopic characterization and application are tightly restricted. Here we show that a Tc exceeding 20 K can be realized on pure elemental Ce under uni…

An Extended-MHD Model for Handling Low-density Plasmas with Tabular Material Models
Nathaniel D. Hamlin, Matthew R. Martin, Jeffrey M. Woolstrum
https://arxiv.org/abs/2506.06625

An Extended-MHD Model for Handling Low-density Plasmas with Tabular Material Models
An extended-MHD model, interfaced with tabular equation-of-state and conductivity models, has been developed in PERSEUS (Physics as an Extended-MHD Relaxation System with an Efficient Upwind Scheme) for simulating a plasma-vacuum interface under experimentally-relevant conditions for a pulsed-power system, and with minimal sensitivity to parameters characterizing the numerical vacuum. For several test problems, we demonstrate convergence of this model for sufficiently low density floors and wit…

This https://arxiv.org/abs/2506.03896 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

FLIP: Flowability-Informed Powder Weighing
Autonomous manipulation of powders remains a significant challenge for robotic automation in scientific laboratories. The inherent variability and complex physical interactions of powders in flow, coupled with variability in laboratory conditions necessitates adaptive automation. This work introduces FLIP, a flowability-informed powder weighing framework designed to enhance robotic policy learning for granular material handling. Our key contribution lies in using material flowability, quantifie…

FLIP: Flowability-Informed Powder Weighing
Nikola Radulov (Department of Computer Science University of Liverpool UK), Alex Wright (Department of Computer Science University of Liverpool UK), Thomas little (Department of Computer Science University of Liverpool UK), Andrew I. Cooper (Department of Chemistry university of Liverpool UK), Gabriella Pizzuto (Department of Computer Science University of Liverpool UK, Department of Chemistry university of Liverpool UK)

FLIP: Flowability-Informed Powder Weighing
Autonomous manipulation of powders remains a significant challenge for robotic automation in scientific laboratories. The inherent variability and complex physical interactions of powders in flow, coupled with variability in laboratory conditions necessitates adaptive automation. This work introduces FLIP, a flowability-informed powder weighing framework designed to enhance robotic policy learning for granular material handling. Our key contribution lies in using material flowability, quantifie…

Unifying same- and different-material particle charging through stochastic scaling
Holger Grosshans, Gizem Ozler, Simon Janta\v{c}
https://arxiv.org/abs/2505.23775

Unifying same- and different-material particle charging through stochastic scaling
Triboelectric charging of insulating particles through contact is critical in diverse physical and engineering processes, from dust storms and volcanic eruptions to industrial powder handling. However, repeated experiments revealed counterintuitive charge patterns, including variable impact charge under identical conditions, charge sign reversal with repeated impacts, and bipolar charging of differently sized particles. Existing computational models cannot predict these patterns; they either re…

Strain-Induced Modulation of Spin Splitting and Persistent Spin Textures in Low-Symmetry 2D Hybrid Perovskites: A case study of RP phase
Shantanu Pathak, Saswata Bhattacharya
https://arxiv.org/abs/2506.01697

Strain-Induced Modulation of Spin Splitting and Persistent Spin Textures in Low-Symmetry 2D Hybrid Perovskites: A case study of RP phase
We report the observation of a persistent spin texture (PST) in pseudo-2D hybrid perovskite, characterized by significant spin splitting strength on the order of \(3 \, \text{eV} \cdot \textÅ\). Using first-principles density functional theory (DFT) calculations, complemented by a \(\mathbf{k} \cdot \mathbf{p}\) model analysis, we validate the presence of PST and its robustness under various conditions. The material's non-centrosymmetric nature and strong spin-orbit coupling ensure uniform spi…

This https://arxiv.org/abs/2505.21924 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Modified Transfer Matrix Method for the Extraction of Material Properties via Terahertz Time-Domain Spectroscopy
Terahertz Time-Domain Spectroscopy is a powerful technique for extracting the low-frequency optical properties of materials. However, the optical constants are difficult to determine directly from the experimental transfer function, such that various numerical approximations must be implemented to describe specific conditions. Here, we introduce a modified Transfer Matrix Method that uses a genetic algorithm for optimization to determine the refractive index of materials in the THz regime. We s…

Line and Planar Defects with Zero Formation Free Energy: Applications of the Phase Rule toward Ripening-Immune Microstructures
Ju Li, Yuri Mishin
https://arxiv.org/abs/2505.24092 …

Line and Planar Defects with Zero Formation Free Energy: Applications of the Phase Rule toward Ripening-Immune Microstructures
Extended one- and two-dimensional defects in crystalline materials are usually metastable. The thermodynamic ground state of the material is presumed to be defect-free. Here, we investigate the conditions under which extended defects, such as grain boundaries, can exist in a multicomponent alloy when the latter reaches the thermodynamic ground state allowed by the Gibbs phase rule. We treat all extended defects as low-dimensional phases on the same footing as the conventional bulk phases. Therm…