Thickness-Dependent Thermal Conductivity and Phonon Mean Free Path Distribution in Single-Crystalline Barium Titanate.
Sign Up to like & getrecommendations! Published in 2023 at "Advanced science"
DOI: 10.1002/advs.202301273
Abstract: 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 sub-100 nm length scales. Such thermal conductivity… read more here.
Keywords: phonon mean; mean free; phonon; distribution ... See more keywords
A New Approach to Modeling the Microdosimetry of Proton Therapy Beams.
Sign Up to like & getrecommendations! Published in 2020 at "Medical physics"
DOI: 10.1002/mp.14165
Abstract: INTRODUCTION To revisit the formulation of the mean chord length in microdosimetry and replace it by the particle mean free path appropriate for modelings in radio-biology. METHODS We perform a collision-by-collision following by event-by-event Geant4… read more here.
Keywords: length; mean free; proton; free path ... See more keywords
Comparison of the Mermin and Penn models for inelastic mean‐free path calculations for electrons based on a model using optical energy‐loss functions
Sign Up to like & getrecommendations! Published in 2019 at "Surface and Interface Analysis"
DOI: 10.1002/sia.6628
Abstract: We present detailed comparisons of calculated inelastic mean‐free paths (IMFPs) of electrons with energies up to 10 keV from the full Penn algorithm (FPA) model and the Mermin model using prototypical Drude‐type energy‐loss functions (ELFs).… read more here.
Keywords: energy; energy loss; model using; model ... See more keywords
Stopping powers and inelastic mean free path from quantitative analysis of experimental REELS spectra for electrons in Ti, Fe, Ni, and Pd
Sign Up to like & getrecommendations! Published in 2019 at "Surface and Interface Analysis"
DOI: 10.1002/sia.6713
Abstract: Stopping power (SP) and inelastic mean free path (IMFP) of electrons in Ti, Fe, Ni, and Pd have been determined by using dielectric models. We have used energy loss function (ELF) determined from quantitative analysis… read more here.
Keywords: analysis; reels spectra; inelastic mean; free path ... See more keywords
Mean Free Path of Different Segments of the Dislocation Loop in FCC Single Crystals
Sign Up to like & getrecommendations! Published in 2017 at "Russian Physics Journal"
DOI: 10.1007/s11182-017-1118-3
Abstract: Numerical value of the shear zone diameter is refined. It is assumed that the shear zone is bounded by long strong dislocation barriers formed in the course of reaction between glissile dislocation segments of the… read more here.
Keywords: free path; dislocation; mean free; dislocation loop ... See more keywords
Thermal conductivity reduction in highly doped mesoporous silicon: The effect of nano-crystal formation
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.5037229
Abstract: The study of heat transfer properties in mesoporous silicon, fabricated from highly doped p-type and n-type silicon wafers, is presented. Measurements were performed by a laser induced transient thermal grating technique, which allowed us to… read more here.
Keywords: reduction; mean free; phonon mean; thermal conductivity ... See more keywords
Hard x-ray bursts observed in association with Rayleigh-Taylor instigated current disruption in a solar-relevant lab experiment
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Plasmas"
DOI: 10.1063/1.5054927
Abstract: Measurements by multiple X-ray detectors show transient emission of a 1 μs pulse of non-mono-energetic ∼6 keV X-rays by a cold, dense MHD-driven plasma jet. Because the collision mean free path is much smaller than the… read more here.
Keywords: mean free; jet; collision mean; ray ... See more keywords
Acceleration of charged particles to extremely large energies by a sub-Dreicer electric field
Sign Up to like & getrecommendations! Published in 2019 at "Physics of Plasmas"
DOI: 10.1063/1.5081716
Abstract: Acceleration of a fraction of initially low-energy electrons in a cold, collisional plasma to energies orders of magnitude larger than thermal is shown to be possible with a sub-Dreicer electric field. Because such an electric… read more here.
Keywords: mean free; energy; acceleration; free path ... See more keywords
Nonuniversal Transverse Electron Mean Free Path through Few-layer Graphene.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.086802
Abstract: In contrast to the in-plane transport electron mean-free path in graphene, the transverse mean-free path has received little attention and is often assumed to follow the "universal" mean-free path (MFP) curve broadly adopted in surface… read more here.
Keywords: microscopy; graphene; electron; free path ... See more keywords
Emissivity and Mean-free Paths of Neutrinos in Neutron Star Matter via Modified Urca Processes
Sign Up to like & getrecommendations! Published in 2017 at "Acta Physica Polonica B"
DOI: 10.5506/aphyspolb.48.661
Abstract: The modified Urca processes are the most effective weak interactions that produce neutrinos in neutron star medium. Emissivity and mean-free path of electron neutrinos arising from the neutron branch of the modified Urca process are… read more here.
Keywords: neutrinos neutron; mean free; urca processes; modified urca ... See more keywords