Journal of Applied Physics
Articles in this Issue
Thermal transport near hotspots in cryogenic devices via the phonon Boltzmann transport equation
The hotspots exist widely in cryogenic devices and play a critical role in influencing their electrical performance. Understanding phonon-mediated thermal transport near hotspots in cryogenic devices...
Anisotropic response in metamaterials with elliptically perforated plates: Applications to near-field radiative heat transfer
Metamaterials with tunable optical properties provide a versatile platform for controlling electromagnetic interactions at the nanoscale. This study explores the anisotropic thermal behavior of metama...
Broadband low-frequency ventilated acoustic metamaterial using decorated membrane-integrated Helmholtz resonator
Ventilated acoustic metamaterials are critical for balancing noise control and airflow in engineering systems, but traditional designs are plagued by narrow bandwidth and bulky structures when targeti...
Impact of metallographic polishing on the RF properties of niobium for SRF applications
The performance of superconducting radio-frequency cavities made of niobium is tied to the quality of their inner surfaces exposed to the radio frequency (RF) waves. Future superconducting particle ac...
The thermoelectric properties of two-dimensional Janus BiSeX materials: A first-principles study
Using first-principles calculations combined with semi-classical Boltzmann transport theory, this study systematically investigates the crystal structure, stability, electronic properties, thermal tra...
Estimation of laser parameters for a carbon ion injector in a next-generation compact heavy ion cancer therapy system
The necessary laser parameters for a laser-driven carbon ion injector, designed for the next-generation compact heavy ion cancer therapy system known as the “Quantum Scalpel,” have been estimated thro...
Quantum algorithm for low-rank matrix regression with feature extraction
Low-rank matrix regression is a pivotal technique in image processing and pattern recognition that can directly handle data with intrinsic matrix structures. However, classical algorithms for this tas...
Enabling broadband low-frequency sound absorption with a stepped Helmholtz-honeycomb metamaterial
To address the challenge of achieving efficient low-to-mid frequency noise absorption under strict weight and thickness constraints, this study proposes a novel honeycomb structure incorporating stepp...
Formability, magnetic and magnetocaloric properties of the Ce-substituted Fe87Pr10B3 metallic glass ribbons
The effects of Ce atom substitution for Pr atoms on the glass forming ability (GFA), magnetic and magnetocaloric performances of the ternary Fe87Pr10B3 amorphous alloy (AA) were studied in the present...
Mechanisms of U and Si diffusion in Fe–X (X = Cr, Al) dilute alloys from first-principles
Fuel–cladding chemical interaction (FCCI) is a key factor driving cladding degradation in the promising U3Si2–FeCrAl accident-tolerant fuel system, yet predictive insights into fuel element diffusion...
Ultrafast carrier dynamics in multiple quantum well p–i–n photodiodes
Quantum well (QW) structures are widely used in lasers, semiconductor optical amplifiers, and modulators, enabling their monolithic integration on the same substrate. As optoelectronic systems evolve...
Growth and domain structure of GeTe ferroelectric thin films on miscut silicon substrates: The key role of atomic steps
A significant progress toward next-generation electronic devices that combine memory and processing functions could involve the electrical manipulation of charge carrier spin textures in semiconductor...
Trade-off between Hall sensitivity, temperature stability, and frequency response in a 2DEG nitride Hall-effect sensor
We investigated the relationship between Hall sensitivity, temperature stability, and frequency response of III-nitride two-dimensional electron gas-based Hall-effect sensors. For this study, we utili...
Nonlinear optical properties investigation of 2D PbI2 material and its application in Yb-doped mode-locking fiber laser
Metal halides have attracted broad interest in advanced photonics and material synthesis fields due to their tunable bandgap, high charge mobility. As a member of metal halides, lead iodide (PbI2) has...
Heating of superparamagnetic powders via the ferromagnetic resonance mode
Efficient heating of magnetic nanoparticles by means of the ferromagnetic resonance method is demonstrated with the use of isotropic superparamagnetic nickel ferrite powder as an example. The kinetic...
Arbitrary orientation and tilt control of topological dark lines driven by magneto-optics
Spatiotemporal optical vortices (STOVs) exhibit transverse orbital angular momentum (OAM) that is perpendicular to the propagation direction of the pulse, presenting significant prospects for applicat...
On the interpretation of the XRD rocking curves of heteroepitaxial Ga2O3 thin films grown on c-plane sapphire
The present work discusses the two-component structure of out-of-plane x-ray diffraction rocking curves (XRD RCs) of Ga2O3 thin films that are heteroepitaxially grown on c-plane sapphire substrates by...
Charge carrier concentrations in linearly graded distributed polarization-doped layers from AlN to Al0.8Ga0.2N and their effect on the far-UVC LED performance
The effect of linearly graded AlN → Al0.8Ga0.2N distributed polarization-doped (DPD) layers with varying thicknesses on the net charge carrier density, output power, and external quantum efficiency (E...
Point defects in proton-irradiated highly Ga- and B-doped Ge
In this study, point defects in highly Ga- and B-doped Ge bulk crystalline samples were investigated using Positron Annihilation Lifetime Spectroscopy. The samples were irradiated with 6 MeV protons a...
Janus bound states in the continuum with complex asymmetric topological charges
Janus bound states in the continuum (BICs) have emerged as a promising platform for manipulating phase singularities due to their asymmetric topological charges in upward and downward radiations. Howe...
Review of DC and AC core compact models and device performance in organic transistors
Organic transistors offer lightweight, flexible, and low-cost platforms for large-area electronics, making them particularly attractive for applications in wearables and biosensing. Their effective us...
Dual-band rainbow trapping in higher-order topological insulators
The higher-order topological rainbow trapping effect enables the separation, slowing down, and capture of waves at distinct frequencies, holding significant potential for applications in integrated ul...
Strain-tunable anionic states and work function in 2D electrenes: A DFT analysis
The anionic electrons in two-dimensional (2D) electrenes form loosely bound and delocalized 2D sheets located on the surfaces and in the interstitial gaps between the atomic layers. The spatial separa...
Experimental demonstration of wurtzite to rock salt transition and bandgap evolution in In1− <i>x</i> Sc <i>x</i> N grown by sputtering
In this study, we investigated the structural properties of In1−xScxN thin films and studied their phase evolution and lattice behavior across varying Sc concentrations. XRD analysis was employed to d...
Annealing induced enhanced magnetic properties of Co35Cr5Fe10Ni30Al20 high entropy alloy: Insights from photoemission spectroscopy and x-ray magnetic circular dichroism
High entropy alloys (HEAs) are expected to overcome the shortcomings of conventional alloys owing to their vast compositional space and unique multifunctional properties. Designing and developing nove...