Results 1 to 10 of about 236,922 (302)

Impact of the Regularization Parameter in the Mean Free Path Reconstruction Method: Nanoscale Heat Transport and Beyond [PDF]

open access: yesNanomaterials, 2019
The understanding of the mean free path (MFP) distribution of the energy carriers in materials (e.g., electrons, phonons, magnons, etc.) provides a key physical insight into their transport properties.
Miguel-Ángel Sanchez-Martinez   +4 more
doaj   +4 more sources

Low-Energy Electron Inelastic Mean Free Path of Graphene Measured by a Time-of-Flight Spectrometer [PDF]

open access: yesNanomaterials, 2021
The detailed examination of electron scattering in solids is of crucial importance for the theory of solid-state physics, as well as for the development and diagnostics of novel materials, particularly those for micro- and nanoelectronics.
Ivo Konvalina   +10 more
doaj   +2 more sources

Thickness‐Dependent Thermal Conductivity and Phonon Mean Free Path Distribution in Single‐Crystalline Barium Titanate [PDF]

open access: yesAdvanced Science, 2023
Nanosized perovskite ferroelectrics are widely employed in several electromechanical, photonics, and thermoelectric applications. Scaling of ferroelectric materials entails a severe reduction in the lattice (phonon) thermal conductivity, particularly at ...
Ankit Negi   +9 more
doaj   +2 more sources

A mean free path approach to the micro/nanochannel gas flows [PDF]

open access: yesAdvances in Aerodynamics, 2020
We investigate the gas flows near to solid surfaces in terms of the local spatial variation in the molecular mean free path (MFP). Molecular dynamics (MD) is the appropriate scientific tool for obtaining molecularly-accurate dynamic information in micro ...
Jianfei Xie
doaj   +2 more sources

Bulk Bi-Sb polycrystals underpinned by high electron/phonon mean free path ratio enabling thermoelectric cooling under 77 K [PDF]

open access: yesNature Communications
Bi-Sb alloy, as a promising thermoelectric material at cryogenic temperatures, has seen stagnant progress due to challenges in understanding the transport behaviors of energy carriers, and difficulties in synthesizing high-homogeneity, large-grain ...
Xiaowei Wu   +17 more
doaj   +2 more sources

Determination of electron inelastic mean free path and stopping power of hafnium dioxide

open access: yesResults in Physics, 2023
We present inelastic mean free path (IMFP) and stopping power data of the hafnium dioxide applying the relativistic dielectric response theory. The energy loss function (ELF) derived from reflection electron energy loss spectroscopy spectrum with the ...
J.M. Gong   +6 more
doaj   +1 more source

Neutron Mean Free Path in the Slab Reactor Core using One-Dimensional Multi-group Diffusion Equation

open access: yesComputational and Experimental Research in Materials and Renewable Energy, 2022
Analysis of the neutron mean free path in the slab reactor core has been carried out using one-dimensional multi-group diffusion equation. This study aims to determine the neutron mean free path in the slab reactor core with the neutron diffusion ...
Putri Nabila   +2 more
doaj   +1 more source

Effect of the Spatially-Varied Electron Mean Free Path on Vortex Matter in a Superconducting Pb Island Grown on Si (111)

open access: yesCondensed Matter, 2023
In this work we report theoretical calculations of a superconducting island in a strong vortex confinement regime. The obtained results reveal the evolution of the superconducting condensate with an applied magnetic field, depending on the spatial ...
Jesús González   +4 more
doaj   +1 more source

Compilation and evaluation of gas phase diffusion coefficients of halogenated organic compounds [PDF]

open access: yesRoyal Society Open Science, 2018
Organic halogens are of great environmental and climatic concern. In this work, we have compiled their gas phase diffusivities (pressure-normalized diffusion coefficients) in a variety of bath gases experimentally measured by previous studies.
Wenjun Gu, Peng Cheng, Mingjin Tang
doaj   +1 more source

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