Journal of Applied Physics
Articles in this Issue
A-site alkali engineering enables decoupled property tunability in lead-free Bi-based chloride double perovskites: A DFT study of Cs2NaBiCl6/Rb2NaBiCl6 as p-type UWBG transparent conductors
The development of high-performance p-type ultra-wide bandgap (UWBG) transparent conductors is fundamentally hindered by the inherent “performance coupling” between optical transparency and charge tra...
Anisotropic magneto-transport properties of semimetallic LaNiSb3
Single crystals of LaNiSb3 were synthesized using the Sn-flux method. Structural characterization confirms that LaNiSb3 crystallizes in the orthorhombic Pbcm space group with lattice parameters a = 13...
Electronic transport in order–disorder coupled bilayer graphene
Within the tight-binding framework, we investigate the electronic transport properties of AA- and AB-stacked ordered–disordered bilayer graphene using matrix diagonalization combined with the quantum...
Comparison of terahertz radiation and hot-electron dynamics in CdTe and GaAs photoconductive antennas excited at 520 nm
Photoconductive antennas (PCAs) remain a cornerstone for efficient terahertz (THz) generation. Given the recent proliferation of ytterbium (Yb) laser technology, adapting PCAs to these specific laser...
Displacement damage induced disorder and thermal transport degradation in AlGaN alloys: A molecular dynamics study
High electron mobility transistors based on AlGaN are widely deployed in radiation rich environments, where displacement damage can degrade both material integrity and heat dissipation. Yet, how displ...
Monte Carlo simulation of transverse-field-induced spin reorientation in Dy2Fe14B under atomic-scale thermal fluctuations
Rare-earth permanent magnets are key materials for modern energy and transportation technologies, and understanding their magnetic behavior under applied magnetic fields is of both fundamental and tec...
Noise-aware machine learning accelerates development of wide-hysteresis NiTi-based shape memory alloys
NiTi-based shape memory alloys (SMAs) with wide thermal hysteresis show great potential in engineering applications such as pipe couplings. However, traditional trial-and-error methods are costly and...
Review: Structural properties of binary metal nitrides
Thin films of binary metal nitrides with cubic or hexagonal crystal structures have a wide range of industrial applications. Their potential and that of their alloys range from metallic protective coa...
Stable low-resistance ohmic contact on GaN via an oxynitride interlayer over 20–200 °C: Mechanisms and performance
Achieving reliable, low-resistance ohmic contacts in GaN-based devices is fundamentally limited by interfaces with high interface-state densities, which are a direct result of essential fabrication st...
Front-end bandwidth and observability limits in confined electronic systems
The progressive miniaturization of solid-state electronic systems drives device operation toward regimes characterized by increasingly rapid electronic dynamics, particularly in reduced-dimensional st...
Machine-learning-assisted multi-objective optimization of thermal conductivity, thermal expansion coefficient, and fracture toughness in rare-earth zirconate ceramics
Although rare-earth zirconates (RE2Zr2O7) are promising top-coat candidates for thermal barrier coatings, their thermal conductivity (TC) still requires further reduction, and their limited thermal ex...
Electronic and optical bandgaps of WO3 and WO3−x: Adsorbed water-induced Burstein–Moss shift
The reported bandgap of stoichiometric WO3 spans a range of 2.6–3.4 eV. The present study evaluated the underlying reason for this wide variation using multiple spectroscopic techniques that preferent...
Ferromagnetic resonances in thin films—Electrodynamic analysis and experiments employing multimode rectangular cavity and broadband coplanar waveguide techniques
Rigorous electrodynamic analysis of resonances in rectangular TMn,m,0z mode resonators containing a thin in-plane magnetized ferromagnetic film is presented. Apart from the resonance frequencies and Q...
Current sheet formation in planar inductive pulsed plasma thrusters
Formation of a well-defined, magnetically impermeable current sheet is central to the operation of pulsed plasma thrusters. Existing scaling laws for inductive pulsed plasma thrusters, however, are pr...
Dynamic charges effect on infrared dielectric response of polar materials
Predictive modeling of the infrared dielectric function in polar materials is crucial for thermal management and infrared devices design. While the Green–Kubo molecular dynamics (MD) framework provide...
Controlling the spin-wave nonreciprocity of a crescent-shaped nanowire via curvature and magnetic field
Recent studies on spin-wave propagation in ferromagnetic waveguides have highlighted the role of nonreciprocity resulting from the chiral nature of dipolar interactions in curved elements. However, th...
Leveraging mechanical frustration in the flatland: A pathway to ambient-pressure strain-engineered superconductivity
Pressure-enabled superconductivity has so far been associated mainly with bulk materials that require extreme external pressures, which sharply limits device relevance despite spectacular transition t...
Modeling cyclic voltammetry and electrochemical impedance spectroscopy measurements of PEDOT:PSS layers with finite density of states
This paper examines the impact of a finite density of states on hole transport in conjugated polymers, with a focus on poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). To this end,...
Laser-driven shock compression of pyrimidine: Insights from Raman scattering
Pyrimidine (C4H4N2), a nitrogen-rich heterocyclic molecule, is central to advanced green energetic materials, where ring nitrogen enhances both energy yield and stability. Understanding its phase evol...
Self-powered photodetection covering UV–visible regime realized in BiSb alloy/silicon heterostructure
This study successfully fabricated a quasi-single-oriented bismuth–antimony (BiSb) (0112) alloy via a dual-target magnetron sputtering method and formed a heterojunction with silicon to construct a se...
Modeling photocathode stoichiometric effects on quantum efficiency
Useful models of quantum efficiency (QE) for growth characterization but also simulation require material and optical parameters that exhibit complex dependencies on frequency and composition. We comb...
Electron scattering from prebiotic ethylene glycol: An R-matrix study
Ethylene glycol is a prebiotically relevant complex organic molecule detected in interstellar and cometary environments, yet quantitative low-energy electron–ethylene glycol scattering data remain lim...
Investigation of Coulomb scattering centers using a substrate bias effect in <i>n</i> -channel metal–oxide–semiconductor field-effect transistors with AlSiO/AlN/ <i>p</i> -type GaN gate structures
Electron scattering factors are analyzed for GaN metal–oxide–semiconductor field-effect transistors (MOSFETs) using gate-biased Hall-effect measurements. The fabricated MOSFETs and Hall devices have A...
Halide-dependent photoelectrical response and charge transport in EVA-embedded Cs2TiClxBr6−x perovskite thin films
Lead-free titanium halide perovskites with the formula Cs2TiClxBr6−x were integrated into an ethylene–vinyl acetate (EVA) matrix to form hybrid perovskite thin films with tunable optoelectronic proper...