cond-mat.mtrl-sci

Interplay of Quantum Size Effect and Tensile Strain on Surface Morphology of Sn(100) Islands

A Diamagnetic, Light-Driven Tesla Engine Based on a Mechanically Displaced, Magnetically Levitated Graphene Disk

The researchers demonstrate the first diamagnetic Tesla engine by using a laterally displaced, magnetically levitated graphene disk that converts light energy into rotational motion through temperature-induced changes in diamagnetic force.

Dynamical stability and multifunctional properties of Ni2+/Pr3+ co-doped CsPbCl3 perovskite: insights from first-principles lattice dynamics and carrier transport

This study demonstrates that Ni²⁺/Pr³⁺ co-doping enhances the structural stability, reduces defect concentrations, and improves the optoelectronic and carrier transport properties of CsPbCl₃ perovskite through first-principles calculations.

Fixed-phase Resonance Tracking for Fast Nonlinear Resonant Ultrasound Spectroscopy

This paper introduces a model-assisted, discrete-time resonance tracking method that maintains a system at its instantaneous resonance frequency through phase-relation monitoring, enabling faster and more stable Nonlinear Resonant Ultrasound Spectroscopy (NRUS) measurements by avoiding full frequency sweeps.

Electric potential of insulated conducting objects in presence of electric charges -- some exact and approximate results

This paper introduces a new "$J$ formalism" that allows for the exact or approximate calculation of the electric potential of insulated conducting objects without needing to determine their surface charge distribution, offering an efficient approach for various geometries and applications like capacitance calculation.

Thermodynamic Modeling of Pure Elements from 0 K with Uncertainty Quantification using PyCalphad and ESPEI

This paper implements physics-based thermodynamic models for 41 pure elements into the open-source software packages PyCalphad and ESPEI, enabling systematic comparison, uncertainty quantification via Markov Chain Monte Carlo, and improved high-throughput CALPHAD modeling from 0 K.

Large language model-enabled automated data extraction for concrete materials informatics

This paper introduces a generalizable, LLM-powered pipeline that automates the extraction of high-quality experimental data from unstructured scientific literature, successfully constructing the largest open database for blended cement concrete to accelerate materials informatics.

Terahertz magneto-nanoscopy of encapsulated monolayer graphene

This study utilizes scattering-type scanning near-field optical microscopy (s-SNOM) to investigate the nanoscale terahertz conductivity of encapsulated monolayer graphene, demonstrating that magnetic fields can tune the cyclotron resonance of Dirac fermions near the charge neutrality point.

Chirality Transfer to the Centrosymmetric Magnetic Sublattice in the Hybrid Perovskite (R)-/(S)-3-Fluoropyrrolidinium Copper(II) Chloride

This paper reports the discovery of a two-dimensional hybrid perovskite where chiral organic cations induce chiral magnetic order within a structurally centrosymmetric inorganic sublattice, a phenomenon confirmed by the presence of a second-order magnetoelectric effect in chiral variants but not in racemic ones.

Spin-current model of electric polarization with the tensor gyromagnetic ratio

This paper develops an extended spin-current model for electric polarization that incorporates an anisotropic tensor gyromagnetic ratio, identifying three distinct magnetoelectric mechanisms and predicting new polarization solutions in cycloidal and helicoidal spin structures.