Journal of Applied Physics
Articles in this Issue
Ge as an orbitronic platform: Giant in-plane orbital magneto-electric effect in a two-dimensional hole gas
Increasing demand for computational power has initiated the hunt for energy efficient and stable memory devices. This is the overarching motivation behind the recent rise of orbitronics, which looks t...
Thermoelectric properties of two-dimensional topological insulators TlBi and TlSb
A comprehensive investigation into the thermoelectric (TE) properties of the two-dimensional TlBi and TlSb topological insulators has been conducted by means of first-principles calculations and noneq...
Optical and electrical signatures of charge trapping in hybrid perovskite MAPbBr3 single crystals
Understanding the dynamics of charge trapping and detrapping is essential for improving the optoelectronic performance of hybrid perovskite materials. In this study, we investigate temperature-depende...
Harnessing near-field interactions in a perfectly tuned metamaterial selective emitter for high-efficiency InSb thermophotovoltaics
Thermophotovoltaic (TPV) systems are gaining attention as a solid-state route for efficient heat-to-electricity conversion, particularly where compact, high-performance power sources are required. A c...
Hall thruster modeling with multiple simulation techniques: Model benchmarking, fluid–kinetic consistency, and experimental validation
Numerical plasma models are critical tools for aiding the design and understanding of electric propulsion systems, such as Hall thrusters, particularly when considering challenges associated with diag...
Derivation of bandwidth and filter characteristics of various types of optically pumped magnetometers
We present a unified and easy-to-follow analytical framework based on the Bloch equations for deriving the small-signal frequency response of several common types of optically pumped magnetometers (OP...
Harness impedance effects on temporal ion energy in a low-power Hall effect thruster
The finite length of the Hall effect thruster (HET) electrical harness has been shown to influence thruster operation by altering voltage fluctuations at the anode through changes in harness impedance...
A multi-factor model for the coherent population trapping resonance
A systematic semi-analytical study of the coherent population trapping resonance is presented. The emphasis is put on quantifying the importance of different experimental factors potentially affecting...
Enhanced graphene surface plasmon polaritons for terahertz sources
Graphene surface plasmon polaritons (SPPs) have attracted extensive attention due to their unique properties, such as extreme light confinement and high tunability via doping and external electric fie...
Direct determination of the Fe3+/2+ charge-transition level in BaTiO3 and isovalently substituted Ba0.82Ca0.18Ti0.92Zr0.08O3 by x-ray photoelectron spectroscopy
Charge-transition levels of dopants in oxides and other semiconductors are key factors affecting a wide range of material properties. Despite their importance, only very few charge-transition levels a...
RF bias-enhanced heteroepitaxial nucleation of (100) diamond on (100) Ir/a-sapphire
We report radio-frequency (RF) bias-enhanced nucleation (RF-BEN) of heteroepitaxial (100) diamond on (100) Iridium (Ir)/a-sapphire by 2.45 GHz microwave plasma chemical vapor deposition (MPCVD) in 8%...
Influence of pulse width on energy deposition and temperature in nanosecond-pulsed discharges
Nanosecond-pulsed discharges are a promising method to enhance combustion but can generate significant levels of electromagnetic interference (EMI). Modifying the discharge pulse width is an unexplore...
Asymmetry in the avalanche dynamics of the interferroelectric phase transformation in barium titanate
The jerky character of displacive phase transformations in ferroelectrics generates measurable ultrasonic signals that provide information about the transformation dynamics. This work investigates the...
Multiple unidirectional guided resonances with reversible radiation direction in tetramer metagratings
Unidirectional guided resonances (UGRs), as a characteristic class of polarization singularities in momentum space, are emerging as key enablers in advanced nanophotonic devices for manipulating radia...
Investigation of Ti/Al/Ni/Au ohmic contacts for AlScN/GaN HEMTs
The high bandgap of AlScN makes it difficult to achieve ohmic contacts with a low specific contact resistance (ρc) to AlScN/GaN heterostructures. High ρc increases the on-resistance of the high-electr...
Spin–orbit torque-induced magnetization switching in electrochemically deposited CoPt oriented polycrystalline film
Current-induced spin–orbit torque (SOT) offers an efficient method of manipulating magnetization and is widely applied in emerging three-dimensional (3D) magnetic memory technologies. Electrochemical...
Numerical and experimental study of facility effects on a gridded ion engine’s plasma plume
Combined numerical and experimental investigations of facility effects on gridded ion engines and their plumes are necessary to improve the extrapolation of experimental data to in-space conditions. T...
Thermal hot-carrier breakdown in metasurface structures based on coplanar arrays of graphene microribbons connected with wide-gap bridges
We analyze the thermal and electrical characteristics of the metasurface composed of a coplanar interdigital array of the graphene microribbons (GMRs) connected by nanobridges (NBs). These nanobridges...
3D-printed mechanically reconfigurable all-dielectric metagrating for terahertz filters
We demonstrate a mechanically reconfigurable terahertz filter implemented by the 3D-printed all-dielectric metagrating, providing a versatile platform for adaptive photonic devices. The structure cons...
State-of-the-art research in conducting polymer thermoelectric composites: Design strategies, doping innovations, and emerging technologies
Conducting polymer-based thermoelectric composites have emerged as a promising candidate for flexible, lightweight, and cost-effective energy conversion systems, addressing the ever growing demand for...
Low-frequency multi-band sound absorption in triangular fractal acoustic metamaterials
Attaining broadband, low-frequency sound absorption within a sub-wavelength footprint remains an outstanding challenge. We introduce a triangular fractal acoustic metamaterial that couples perforated...
Self-pulsed Tm:GdScO3 laser amplifier for near-diffraction-limited nanosecond pulse generation
Achieving high-peak-power, narrow pulse width 2 μm lasers with near-diffraction-limited beam quality is critical for precision micromachining, minimally invasive surgery, and sensitive gas sensing, as...
Impact mitigation generated by localized softness on a 3D-printed topological lattice
Topological mechanics can exhibit localized softness through geometrically programmed unit cells, and a promising application of this property is impact mitigation. We experimentally demonstrate effic...
Hydrodynamic tuning thermal conductivity and microstructure of wood-based nanocellulose through hydrochloric acid concentration
The continuous increase in power density of flexible electronic devices underscores the critical need for developing efficient thermal management solutions. Cellulose nanofibril (CNF) has emerged as a...
Solid–liquid interface stability in the rapid solidification of a binary mixture
A concept of morphological instability of the solid–liquid interface introduced by W. W. Mullins and R. F. Sekerka [J. Appl. Phys. 35, 444 (1964)] is the basis for the evolution of phase interfaces an...