physics papers | Gist.Science

Interfacial Thermal Conductance Due To Electronic Heat Transport Across A Normal-metal to Superconductor Boundary Of Dissimilar Materials

This paper reanalyzes six decades of thermal transport data across normal-metal to superconductor interfaces to demonstrate that electronic heat transport, particularly when modeled using the Bardeen-Rickayzen-Teword (BRT) framework adapted with the Wiedemann-Franz law, is a dominant and necessary mechanism alongside phonons to explain experimental results across a wide temperature range, whereas other proposed electronic models fail to align with observations.

Robert Young2026-07-24

📄 other

Micron-scale Quantum Dot Light-Emitting Diodes with EQE Exceeding 42%

This study demonstrates the first dual-function molecularly engineered charge generation layer using fluorinated BPAF to simultaneously passivate defects and modulate energy bands in ZnO, enabling all-solution-processed tandem QLEDs to achieve a record-breaking 42.82% external quantum efficiency at 10,160 PPI while overcoming the intrinsic efficiency-resolution trade-off for next-generation near-eye displays.

Hailong Hu, Hao Liu, Kuibao Yu, Tian Liu, Jiahao Wang, Kai Xie, Haolin Luo, Zhihan Lin, Jingnan Su, Guihua Lin, Peijun W (…)2026-07-24

📄 other

Diffusionless (martensitic) phase transition of Fe90Ni10 alloy up to 6 GPa

This study utilizes in-situ synchrotron X-ray diffraction to demonstrate that Fe90Ni10 alloy undergoes a diffusionless martensitic transition from fcc to bcc phases under pressures up to 6 GPa, revealing a negative pressure dependence for the transformation temperature and establishing that this rapid mechanism, rather than slow chemical separation, governs the physical responses of small planetary cores to dynamic events.

Tatsuya Sakamaki, Hironobu Katayama, Osamu Ikeda, Akio Suzuki2026-07-24

📄 other

Analytical solution of Advection diffusion equation in three dimensional through Atmospheric Boundary Layer

This paper presents an analytical solution to the three-dimensional steady-state advection-diffusion equation for pollutant dispersion in the atmospheric boundary layer, utilizing power-law profiles for vertical eddy diffusivity and wind speed along with a Laplace transform method, and validates the model's accuracy against the Prairie Grass stable experiment observations.

Khaled S. M. Essa, Maha S. El-Otaify, Soad. M. Etman, Sawsan E. M. Elsaid2026-07-24

📄 other

Evaporation of Low-Boiling Components from Water Solution Droplets

This paper presents direct measurements of the evaporation dynamics and concentration changes in suspended aqueous droplets of acetone, methanol, and ethanol using a capacitance method, ultimately establishing a generalized correlation for mass loss that incorporates environmental parameters and the Schmidt number to account for internal molecular momentum and mass transfer.

Nikolay Shishkin, Alexandr Nazarov2026-07-24

📄 other

Coupled Effects of Boundary Corrugation and Hartmann Damping on Nanofluid Convection in Isosceles Triangular Enclosures: A High-Fidelity Thermophysical Analysis

This study employs a high-fidelity non-orthogonal Discrete Finite Element Method to demonstrate that temperature-dependent nanofluid models significantly outperform classical formulations in predicting MHD convection within wavy triangular enclosures, while identifying a critical Hartmann number threshold where electromagnetic forces suppress geometric boundary effects.

Karim Mehrabi2026-07-24

📄 other

Laser power density driven residual stress and surface quality of AA7075 alloy under laser shock peening

This study investigates the impact of laser power density and overlap strategies on the residual stress and surface quality of AA7075 alloy under Laser Shock Peening, revealing that cumulative strain from optimal pulse overlaps, rather than peak shock pressure alone, is the primary determinant for maximizing compressive residual stress while avoiding surface damage.

Himanshu Kumar, Jan Kaufman, Sunil Pathak, Jaromír Kopeček, Jan Šmaus, Elżbieta Gadalińska, Ondřej Stránský, Filip Čáp (…)2026-07-24

📄 other

Design and Simulation of a Tunable Meta-surface Filter Based on Liquid Crystal in the VIS–NIR Wavelength Range

This study presents a voltage-controlled tunable optical filter for the VIS–NIR range, utilizing a 1D aluminum metasurface combined with nematic liquid crystal (E7) to achieve dynamic spectral reconfigurability through electro-optical modulation, as validated by COMSOL simulations.

KHASHAYAR MOKHTARI NASR, EBRAHIM HAJIALI, ALI SHEKARI2026-07-24

📄 other

Multiscale Calculation of Equivalent Elastic Modulus for Rock Mass Based on Perturbation Theory

This paper proposes a multiscale calculation approach based on perturbation theory that incorporates initial damage and meso-heterogeneity to accurately determine the equivalent elastic modulus of rock masses, demonstrating superior accuracy compared to conventional methods through validation with laboratory and field test results.

Lei Wen, Wu Yang, Huayun Yang2026-07-24

📄 other

How a Laser Heats up: Operando Spatio-temporal Heat Dynamics Mapping in Group-IV Lasers

This study utilizes operando X-ray microscopy and simulations to reveal that contact-mediated Joule heating, rather than heat generation in the gain medium, is the dominant thermal bottleneck in electrically driven Group-IV microdisk lasers, establishing contact engineering as the key to improving device performance.

Bernd Witzigmann, Agnieszka Corley-Wiciak, Cedric Corley-Wiciak, Lukas Seidel, Gianfranco Sfuncia, Jhonny Tiscareno-Rami (…)2026-07-24

← Previous Next →