Journal of Applied Physics
Articles in this Issue
Achieving low write error rates in perpendicular spin–orbit torque MRAM: A micromagnetic modeling feasibility study
We report a micromagnetic modeling study of switching perpendicularly magnetized free layers with spin–orbit torques (SOTs) generated by spin currents consisting of only orthogonal (conventional SOT)...
A method for enhancing the temperature measurement range of fiber specklegram sensors based on the integrated speckle intensity probability density function
Fiber specklegram sensors based on correlation demodulation suffer from rapid loss of correlation when the measured specklegram deviates too far from the reference image, causing their dynamic range t...
Calculation of backscattering correction factors in AES for compounds: Unraveling matrix effects
Backscattering correction factor (BCF) data are essential for quantitative Auger electron spectroscopy (AES) analysis. This study computes BCFs for nine oxides and three zinc chalcogenides by using a...
Thermodynamically admissible neural solvers for stiff electro-elastodynamics via exact geometric constraints
Physics-Informed Neural Networks (PINNs) serve as continuous, mesh-free solvers for partial differential equations, but they frequently encounter optimization failures when applied to strongly coupled...
Thermoelastic dynamics of a nanoscale metallic film: Role of bilayer coupling revealed by extreme ultraviolet transient gratings
We investigate the thermoelastic dynamics of an 80 nm titanium thin film supported by a Si3N4 membrane by extreme-ultraviolet transient-grating (EUV-TG) spectroscopy across varying excitation fluences...
High current ultrawide bandgap AlGaN pin diodes with low on-resistance and UVC emission
We report ultrawide-bandgap AlGaN pin diodes with high forward current density and deep-ultraviolet (DUV) electroluminescence signaling efficient carrier injection. The devices incorporate a 100 nm un...
Molecular dynamics study of ferroelectric switching mechanisms in monodomain and 180° domain walls of BaTiO3 and PbTiO3
Understanding the intrinsic switching mechanisms is essential for controlling polarization domains and enabling their integration into next-generation nanoelectronic devices. In this study, we employ...
Physics-driven mechanisms governing the pharmacokinetics and immune fate of gold nanoparticles. I. An ADIE framework perspective
Gold nanoparticles’ (GNPs) clinical translation requires a mechanistic understanding of their pharmacokinetics at the nano–bio interface. Classical ADME (Absorption, Distribution, Metabolism, Eliminat...
Mechanisms of dislocation loops influencing damage evolution of single crystal copper under uniaxial and triaxial tension
Dislocation loops are typical irradiation defects that significantly influence the mechanical behavior of irradiated materials. In this work, molecular dynamics simulations are performed to investigat...
Rapid general electromagnetic analysis of metallic surfaces via conformal energy minimization
We recently found that the electromagnetic scattering problem can be solved efficiently using an approach that expresses the fields in terms of a set of orthonormal basis functions. In this paper, we...
Electrical properties of electrochemically energized n-GaN under reverse-bias conditions
Electrochemical energization of n-GaN was conducted under reverse-bias conditions as well as forward-bias conditions that were used in our previous studies for anodization, and electrical properties o...
Manipulating acoustic waves in wavevector domain by using nonlocal metasurfaces: Analog differentiation and extreme acoustic detection
Conventional acoustic metasurfaces have shown exceptional capability through spatial wavefront engineering, but the degrees of freedom in the wavevector domain remain to be unlocked. Here, we shift th...
The effect of aging and charge variability on the detonation performance of a conventional plastic-bonded high explosive
Plastic-bonded explosives (PBXs) are pressed composites of energetic crystals (>90 wt. %), polymeric binder, and an internal porosity structure (1–2 vol. %). The binder ensures material stabili...
Analytical calculation of field enhancement factor of 2D structure graphene film
Field emitters are one of the promising electron sources for vacuum electronic devices operating in mm-wave and terahertz frequencies, where emission performance is critically governed by the field en...
Weakly nonlocal thermoelasticity of type II: Rayleigh waves in coated half-spaces
It is well known that Eringen’s nonlocal thermoelasticity theory using the nonlocal Fourier law of heat conduction and its modifications has been widely applied to harmonic plane wave problems. Howeve...
Higher-winding phases in one-dimensional non-Hermitian topological superconductors
Non-Hermitian topological superconductors provide a setting in which point-gap topology, non-Hermitian skin effects, and Majorana zero modes are strongly intertwined. In this work, we adopt a coeffici...
Dilute Pb in Ge materials fabricated by ion implantation and pulsed laser melting
Germanium lead (GePb) alloys have shown promising potential as a material platform for fabricating mid-infrared photodetectors, where the Pb content enables tuning of the bandgap. However, fabricating...
A sector-shaped acoustic metamaterial for broadband and wide-angle sound absorption
Maintaining stable absorption performance at large oblique incidence while achieving broadband sound absorption remains a major challenge for conventional sound-absorbing materials. To address this is...
Electric-field dependence of cycle endurance in HfO2-based ferroelectric capacitors
The cycle endurance characteristics of HfO2-based ferroelectric (FE-HfO2) capacitors were systematically investigated in terms of area, temperature, film thickness, and ferroelectric polarization. Cyc...
Angle-dependent magnetotransport and quantum interference effect in type-II topological Dirac semimetal PtSe2
We report the angle-dependent magnetoresistances (MRs) of platinum diselenide (PtSe2) in the Dirac semimetal phase. The negative longitudinal MR observed in parallel fields persists up to ∼50 K, which...
From drop impact to cellular response: Transient interfacial force fields, contact-line physics, and mechanotransduction in complex biofluids
Drop impact is a classical problem in fluid mechanics, yet its implications for biological systems remain largely unexplored. Upon impact, droplets generate transient interfacial force fields composed...
Pressure-dependent electron heating and discharge localization in an electronegative CF4 ICP reactor with RF substrate bias
A two-dimensional axisymmetric direct-implicit particle-in-cell/Monte Carlo collision model is used to study pressure-dependent electron heating and discharge localization in an electronegative CF4 pl...
Temperature-bias noise and quantum shot noise as probes of pairing symmetry in iron pnictides
Quantum noise has long served as a powerful probe of quantum transport in mesoscopic junctions. Recently, temperature-driven noise, or ΔT noise, has attracted growing interest due to its presence even...
Spatially asymmetric switching under spin–orbit torque and Dzyaloshinskii–Moriya interaction
Efficient spin–orbit torque (SOT) switching of perpendicular magnetization is of crucial importance for the magnetic random-access memory. In this work, we study the ultrafast switching of a perpendic...
High-sensitivity optical fiber magnetic field and current sensor based upon two cascaded Mach-Zehnder interferometers
In this article, we have designed a highly sensitive S1 that can measure magnetic field (MF) and current. S1 consists of two Mach-Zehnder interferometers (MZIs) cascaded together, namely, MZI1 and MZI...