Journal of Applied Physics
Articles in this Issue
Damage generation efficiency of protons and 60Co gammas in III–V infrared semiconductors
Radioisotope (60Co) and particle accelerator (10 s MeV proton) sources are both commonly used to assess the effects of the space radiation environment on electronics and detectors; however, the effici...
Gallium-related defects in <i>p</i> -type silicon irradiated with electrons and protons. Anisotropy of conductivity due to boron- and gallium-related defects in irradiated silicon
Hall effect and conductivity measurements over a wide temperature range of 20–300 K are carried out on gallium-doped silicon subjected to 3.5 MeV electron and 15 MeV proton irradiation at room tempera...
DFT study of carbon-related defects in yttrium aluminum garnet in a CO-containing atmosphere
Using density functional theory combined with thermochemical data, we analyze the formation of native and carbon-related defects in yttrium aluminum garnet (YAG) grown in a CO-containing atmosphere. T...
Goos–Hänchen-like shift in Pt2HgSe3
The Goos–Hänchen-like (GH) shift of electron wavepackets at potential interfaces provides a powerful method for probing the properties of quantum materials. In this work, we theoretically investigate...
Analytical compact model for mobile charge density in III-nitride multiple-channel field-effect transistors
An analytical compact model is developed for the mobile charge density of multiple-channel field-effect transistors based on the III-nitride material system. Two-dimensional electron and hole gases ca...
Landau–Ginzburg free energy study of spin state phase transition in LaCoO3
LaCoO3 (LCO) undergoes a cubic to rhombohedral structural phase transition at ∼1600 K, a metal–insulator transition at ∼550 K, and a spin-state transition at ∼100 K. The thermodynamics of spin-state p...
Stress-relaxation model for thermal oxide films grown on Si (100) substrates at low temperature
This study discusses a structural relaxation model for stressed thermal oxide films grown on Si (100) substrates at a temperature that is too low for viscous flow to relax an Si thermal oxide film. Th...
The hidden nature of the dynamic high-pressure strength of diamond-TiC composite
The strength of diamond is critical for both static and dynamic high-pressure research. Under the compression of shock waves in the range of hundreds of gigapascals, single-crystal diamond exhibits st...
Electron energy loss spectroscopy study of ceria sinters and nanoparticles irradiated with swift heavy ions
The electronic energy loss spectra of ceria (CeO2) irradiated with swift heavy ions (27 MeV Xe and 946 MeV Au) in the electronic slowing down regime were measured for bulk sintered samples and nanopar...
Interfacial phases are the key to enhancing thermoelectric figure of merit
Thermoelectric (TE) performance of complex nanostructured materials is strongly influenced by the morphology and transport properties of the grain boundaries, or interfacial regions connecting togethe...
Real-time generalized terahertz time-domain ellipsometry enabled by dual-channel photoconductive antennas
Generalized ellipsometry can uncover the optical properties of anisotropic materials, in which the light–matter interaction alters the polarization state. In the terahertz frequency range, generalized...
Structure, vibrational modes, and surface electronic states of two-dimensional valentinite antimony oxide
We report a comprehensive study of two-dimensional (2D) valentinite antimony oxide (β-Sb2O3) exfoliated from its natural bulk form. The flakes exhibit well-defined morphology, low surface roughness, a...
An automatic three-way clustering method based on shadowed sets and its application to FMT
Fluorescence molecular tomography (FMT) is a promising medical imaging technique that enables non-invasive, specific, and sensitive detection of the fluorophore. However, multiple-target resolving rem...
Electron and hole surface roughness scattering-limited mobilities in oxygen-inserted (OI) Si channel
The electron and hole surface roughness scattering (SRS)-limited mobilities, deconvolved from 4.2 K measurements, were compared between oxygen-inserted (OI) and control Si channel for n- and pMOSFETs....
Energy deposition and the transition from linear to nonlinear focusing regimes in ultrafast laser filamentation
This study examines the dynamics of filamentation during ultrafast laser propagation using loosely focused ∼800 nm, ∼35 fs laser pulses through lenses with varying f-numbers. The transition between li...
Impact of extractor aperture on the onset voltage of externally wetted electrospray sources
Accurate prediction of onset voltage is essential for optimizing the emission characteristics of electrospray sources (e.g., by setting the range of emitted beam energies), yet existing analytical mod...
A pathway to strain-free AlGaN grown on native GaN substrates
We demonstrate that facet-controlled epitaxial lateral overgrowth enables the formation of regular, strain-relieving misfit dislocation (MD) arrays at {11−22} interfaces and results in relaxed growth...
Nature of the SiGaN antisurfactant layer enabling MOVPE growth of GaN nanowires
Over the past decade, the growth of nanowires via metalorganic vapor phase epitaxy has commonly employed silicon incorporation in high concentration in the gas phase to produce long nanowires (&gt...
Spin wave dispersion of the van der Waals antiferromagnet NiPS3
We calculate the magnon dispersion spectra of the two-dimensional zigzag van der Waals antiferromagnet NiPS3 for monolayer, bilayer, and bulk systems as a function of an external magnetic field. We co...
Structural design and performance control of membrane-cavity structural metamaterials with partitioned chambers for low-frequency broadband sound absorption
In view of the problems of large thickness and low efficiency of traditional materials in low-frequency noise control, this research proposes a high-performance broadband sound-absorbing metamaterial...
Imaging efficiency optimization for x-ray fluorescence computed tomography based on Thomson scattering x-ray sources
X-ray fluorescence computed tomography (XFCT) based on Thomson scattering x-ray sources is a novel molecular imaging technique applicable in both laboratory and clinical settings. However, its practic...
A design method for stable, efficient MW-level phase-locked magnetrons based on differential regulation of intercoupled modes
Addressing phase-locking instability caused by mode interference in efficient phase-locked magnetrons, this paper proposes a design method for stable, efficient phase-locked MW-level non-relativistic...
Radio-frequency heating of saline water: The dipolar and nonlinear absorption
The dominant mechanism of radio-frequency (RF) heating in saline water, which is critical to biomedical and food-processing applications, has conventionally been attributed to electric dipolar polariz...
Framework for high fidelity plume simulations with facility carbon sputter tracking
Facility effects induced by vacuum chambers in electric propulsion testing complicate the extrapolation from ground test results to space performance. Facility surface material sputtering by energetic...
Investigating shock-induced chemical reactions in Ni+Al multilayers: A continuum-based mesoscale approach with Arrhenius kinetics and artificial thermal conduction
A new continuum-based mesoscale modeling approach for shock-induced chemical reactions (SICRs) in Ni+Al multilayers is demonstrated in Sandia’s shock physics hydrocode, CTH. The approach utilizes Arrh...