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The nature of structure formation around the particle free streaming scale is still far from understood. Many attempts to simulate hot, warm, and cold dark matter cosmologies with a free streaming cutoff have been performed with…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Aurel Schneider , Robert E. Smith , Darren Reed

Alloyed metal nanoparticles are a promising platform for plasmonically enabled hot-carrier generation, which can be used to drive photochemical reactions. Although the non-plasmonic component in these systems has been investigated for its…

Mesoscale and Nanoscale Physics · Physics 2024-08-15 Jakub Fojt , Tuomas P. Rossi , Priyank V. Kumar , Paul Erhart

Using plasma-enhanced chemical vapor deposition (PECVD) with Acetylene and Ammoniac on Pd-specimens Carbon nanotubes (CNT) could be produced successfully. Two different devices are compared and the conditions for best growth conditions are…

Materials Science · Physics 2015-06-24 Wilfried Wunderlich , Masaki Tanemura

Aluminum nitride (AlN) is an emerging material for integrated quantum photonics with its excellent linear and nonlinear optical properties. In particular, its second-order nonlinear susceptibility $\chi^{(2)}$ allows single-photon…

Materials Science · Physics 2021-06-29 G. Terrasanta , M. Müller , T. Sommer , S. Geprägs , R. Gross , M. Althammer , M. Poot

The model of gas-discharge nonneutral electron plasma has been considered, in which the electron density is limited by non-linear processes initiated by diocotron instability and it does not depend on the mechanism of electron transport…

Plasma Physics · Physics 2013-11-19 N. A. Kervalishvili , G. N. Kervalishvili

The present work deals with the synthesis of crystalline carbon nitride thin films by microwave plasma assisted chemical vapour deposition in N$_2$/CH$_4$ gas mixture. The discharge analysis by optical emission spectroscopy shows that the…

A new category of plasma emerged at the end of the 1970s. It consists of a column of plasma maintained by the electric field component of radiofrequency (RF) and microwave (MW) waves that propagate at the interface between the outer surface…

Plasma Physics · Physics 2026-04-20 Michel Moisan

A compact analytical model is developed for the mobile charge density of polar multiple channel field effect transistors. Two dimensional electron and hole gases can be potentially induced by spontaneous and piezoelectric polarization in…

Applied Physics · Physics 2026-03-30 Aias Asteris , Thai-Son Nguyen , Huili Grace Xing , Debdeep Jena

In plasmonics, and particularly in plasmonic photochemistry, the effect of hot-electron generation is an exciting phenomenon driving new fundamental and applied research. However, obtaining a microscopic description of the hot-electron…

We use the high-resolution Aquarius cosmological dark matter simulations coupled to the semi-analytic model by Starkenburg et al. (2013) to study the HI content and velocity width properties of field galaxies at the low mass end in the…

Astrophysics of Galaxies · Physics 2016-02-17 C. Y. Yaryura , A. Helmi , M. G. Abadi , E. Starkenburg

Mass spectrometry and photoemission spectroscopy of a graphite hollow cathode source identify the parameters of the transition from the C(3) dominated discharge to the sooting plasma. The transition is a function of the shape and profile of…

Materials Science · Physics 2016-11-03 Shoaib Ahmad , Bashir Ahmad , Tasneem Riffat

We consider a plasma that is created by a high voltage difference, which is known as a Townsend gas discharge. The plasma is confined to the region between two concentric spheres, one of which is a cathode and the other an anode.…

Analysis of PDEs · Mathematics 2025-12-22 Walter A. Strauss , Masahiro Suzuki

Hydrogen arranges at dislocations in palladium to form nanoscale hydrides, changing the vibrational spectra. An ab initio hydrogen potential energy model versus Pd neighbor distances allows us to predict the vibrational excitations for H…

Materials Science · Physics 2011-06-01 Dallas R. Trinkle , Hyunsu Ju , Brent J. Heuser , Terrence J. Udovic

A hollow cathode source with a specially designed cusp magnetic field B whose z component is a function of radius and the azimuth angle, provides clustering environment to the sputtered carbon atoms and ions. The distinctive features of the…

Mesoscale and Nanoscale Physics · Physics 2016-09-21 Shoaib Ahmad

The present study provides an investigation on the deposition of carbon-related products on different substrates using a high power dielectric barrier discharge fed with helium and saturated hydrocarbon gases. The discharge has been…

Hexagonal boron nitride (h-BN) is deposited on Si <100> wafer ($\approx$20 cm2) via Plasma Enhanced Chemical Vapor Deposition (PECVD) using a ns-pulsed N2/Ar Micro Hollow Cathode Discharge (MHCD) as a microplasma source. For the first time,…

Dark photons (DPs) produced in the early Universe are well-motivated dark matter (DM) candidates. We show that the recently proposed tunable plasma haloscopes are particularly advantageous for DP searches. While in-medium effects suppress…

High Energy Physics - Phenomenology · Physics 2020-08-12 Graciela B. Gelmini , Alexander J. Millar , Volodymyr Takhistov , Edoardo Vitagliano

Due to the wide range of possible applications, atomically thin two-dimensional heterostructures have attracted much attention. In this work, using first-principles calculations, we investigated the structural and electronic properties of…

We explore the possibility that the density profiles of elliptical galaxies and cold dark matter (CDM) halos found in cosmological simulations can be understood in terms of the same physical process, collisionless gravitational collapse. To…

Cosmology and Nongalactic Astrophysics · Physics 2012-06-27 Eli Visbal , Abraham Loeb , Lars Hernquist

Recent N-body simulations show that the formation of a present-day, galaxy sized dark matter halo in the CDM cosmogony in general consists of an early fast collapse phase, during which the potential associated with a halo is established,…

Astrophysics · Physics 2016-08-30 H. J. Mo , Shude Mao
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