Journal of Applied Physics
Articles in this Issue
Laser controlled combustion rate of an aluminum/copper oxide thermite
This study demonstrates that the burn rate of an Al/CuO nanothermite can be controlled using continuous wave laser irradiation. Expanding a 532 nm laser beam through a cylindrical lens enabled the cre...
Anticrossing energy and symmetry-broken spin angular momentum of the surface states on Au(111)
The surface states on Au(111) are demonstrated for the anticrossing energy and the symmetry-broken spin angular momentum on the basis of first-principles calculations. The surface states are described...
Orientation dependence of the <i>α</i> –ε– <i>α</i> transition cycle in dynamically compressed polycrystalline iron samples
Iron samples with varying initial grain sizes were submitted to dynamical compression using laser ramp loading. Electron backscatter diffraction mappings of crystal orientations were performed in thei...
The dielectric identity of organic semiconductors: Bulk dielectric relaxation time as a universal figure of merit
Organic field-effect transistors have been analyzed for four decades within a semiconductor framework that their active materials do not support. In undoped organic semiconductors, the Debye screening...
Harmonic-assisted electromagnetically induced transparency-like with multiband polarization insensitivity on metamaterials
In this work, we present the design and analysis of a dual-layered metamaterial structure exhibiting multi-band, polarization-insensitive electromagnetically induced transparency (EIT)-like effects. T...
Monolayer boron-graphdiyne as a potential thermoelectric material
Motivated by the recent experimental synthesis of two-dimensional (2D) boron-graphdiyne (BGDY), a π-conjugated structure made from a merely sp carbon skeleton connected with boron atoms, we systematic...
Migration behaviors of oxygen vacancies in polarized multilayer ceramic capacitors studied by Kelvin-probe force microscopy and thermally stimulated depolarization current spectroscopy
The migration behaviors of the oxygen vacancies in multilayer ceramic capacitors (MLCCs) due to polarization under high temperature and heat treatment after the polarization were studied by frequency...
Vibration-based degradation physics modeling and reliability-driven maintenance optimization of railway axle box bearings using improved fuzzy support vector data description
Understanding the physical degradation mechanisms of axle box bearings and translating them into quantitative reliability metrics is essential for safe railway vehicle operation. This paper presents a...
Magnetic properties and magnetocaloric effect in RCr0.3Ge2 (R = Ho, Er) compounds
Polycrystalline RCr0.3Ge2 (R = Ho, Er) compounds exhibiting magnetic transitions in the liquid helium temperature region were successfully synthesized, and their magnetic properties and magnetocaloric...
Integration of oscillator-based feature extraction for energy-efficient convolutional neural networks
The rapid growth in machine learning and artificial intelligence workloads has increased the demand for computing power. Although digital computing accelerators dominate today’s market, analog computi...
Enhanced damage effect on ceramic/metal composite plate by reactive projectile
A ballistic experiment was performed to investigate the enhanced damage effect on the ceramic/metal composite plate by the reactive projectile. Steel-density reactive projectiles were fabricated from...
Unveiling the electronic landscape of defect and tail states in a-IGZO thin films through photoluminescence excitation spectroscopy
Amorphous indium gallium zinc oxide (a-IGZO) has emerged as a promising semiconductor for next generation optoelectronic and display technologies due to its high carrier mobility, optical transparency...
Pulsed-laser calibration of high-resolution microcalorimeters for x-ray astronomy
The resolving power of single-photon microcalorimeters for high-resolution x-ray spectroscopy has improved to the point that uncertainties in the energy calibration can limit their scientific capabili...
Structural and optical characterization of semiconducting Cr2O3-modified lithium borate glasses
Glasses with compositions (50−x)Li2O–xCr2O3–50B2O3 with varying Cr2O3 contents (0–20 mol. %, with an interval of 4 mol. %), were synthesized using the melt-quenching method, and their structural, ther...
Complex refractive index extraction for spintronic terahertz emitter analysis
Spintronic terahertz emitters (STEs) generate broadband terahertz (THz) radiation, which is essential for spectroscopy, imaging, and communication. The performances and the essential physical paramete...
Portable single-beam atomic total-field magnetometer for stand-off magnetic sensing
Optically pumped atomic magnetometers (OPAMs) offer high sensitivity at room temperature and are increasingly considered for portable magnetic sensing in geomagnetic-field environments. Here, we repor...
Transverse structure of field-emission electron wave packets from nanometer-scale hemispheroidal cathodes and two-dimensional film edge emitters
The transverse structure of field-emission electron wave packets is governed by the cathode material and geometry through the near-apex electrostatic potential, which induces electrostatic defocusing...
Field-material coupled neural network: A novel zero-shot physics-informed learning inverse problem solver for extracting complex dielectric constant in terahertz band
Accurate extraction of the complex dielectric constant in the terahertz (THz) band is essential for material characterization and non-destructive evaluation yet remains challenging due to the ill-pose...
Vacuum-level-referenced band tuning induced by ion exchange and exfoliation in layered perovskite KCa2Nb3O10
Ion exchange and exfoliation are widely used chemical processes for layered perovskites; however, their impact on vacuum-level-referenced electronic band alignment remains unclear. In this study, we i...
Martensitic phase transformation and thickness-dependent magnetization dynamics in off-stoichiometric Co–Fe–Ti–Si Heusler alloy thin films
We report a systematic investigation of the influence of film thickness (25–65 nm) on the martensitic phase transformation (MPT) and the associated magneto-transport and magnetization dynamics of off-...
First-principles study of the effects of biaxial tensile strain and size confinement on phonon transport in <i>β</i> -Ga2O3
β-Ga2O3 is a promising ultrawide-bandgap semiconductor for high-power and optoelectronic applications; yet, its intrinsically low thermal conductivity poses challenges for heat dissipation. To clarify...
Magnetotransport evidence for the coexistence of trivial and topological phases in the band spectrum of bulk <i>n</i> -HgTe with extremely low electron density
Magnetotransport phenomena are investigated in a nominally pure n-HgTe single crystal with an exceptionally low electron concentration of 7.3 × 1014 cm−3. The results enable the proposal and validatio...
Temporal scale-bridging of chemistry in a multiscale model: Simulating the shock-to-detonation transition of energetic materials
We demonstrate the prediction of the shock Hugoniot behavior, shock-to-detonation transition, and detonation properties of a prototypical energetic material (EM), RDX (1,3,5-trinitro-1,3,5-triazinane)...
Design and optimization of dual-band sonic topological insulators based on genetic algorithm
The 2D sonic topological insulators (STIs), which can support topological edge states and corner states, provide a platform for acoustic manipulation. We utilize genetic algorithm (GA) to optimize the...
200 mm wafer-scale integration of bilayer wurtzite ferroelectric AlScN exhibiting effective d33,f &gt; 26.8 pm/V and e31,f &gt; 4.6 C/m2
We report the successful integration of a bilayer ferroelectric aluminum–scandium–nitride (Al0.64Sc0.36N) thin film on an industrial-scale 200 mm silicon (100) wafer. Microstructural analysis revealed...