Journal of Applied Physics
Articles in this Issue
Two-electron anharmonic quantum dot: Effects of uniform magnetic field
The confinement of two electrons by an external potential in a semiconductor and hence a two-electron quantum dot (TEQD) is a well-investigated problem. These external potentials vary from a square we...
Annealing reduces leakage current in MBE grown AlScN and AlYN films
Ternary aluminum scandium nitride (AlScN) and aluminum yttrium nitride (AlYN) are emerging wide-bandgap piezoelectric and ferroelectric materials with significant potential for next-generation electro...
Scaling dynamics of electrothermal coupling in thermoelectric materials probed by time-domain impedance spectroscopy
The time-dependent resistance R(t) in time-domain impedance spectroscopy (TDIS) is derived from the frequency-dependent impedance Z(ω) using the inverse Laplace transform within a unified electrotherm...
Fundamental understanding of the reliability issues of hafnium oxide-based ferroelectric field-effect transistors: A comprehensive review
Hafnium oxide (HfO2)-based ferroelectrics have significantly transformed the domain of ferroelectric materials and memory technologies, delivering extraordinary advantages in areas, such as scalabilit...
Ultrafast charge emission at terahertz frequency in high-intensity femtosecond laser ablation process
Initial charge emission processes during femtosecond laser ablation are investigated by monitoring the waveforms of terahertz radiation in real time using echelon-based single-shot terahertz time-doma...
Evolution of the crystal structure, morphology, and magnetic properties of cobalt-based nanoparticles during heat treatment
Carbon-encapsulated cobalt nanoparticles (NPs) were synthesized by thermal decomposition of a solution of organic components and cobalt acetate followed by heat treatment in an argon atmosphere at dif...
Experimental study on the Rayleigh–Taylor instability of metallic interfaces with dual-mode driven by explosion
Planar detonation-driven experiments and numerical simulations were combined to investigate the evolution of Rayleigh–Taylor instability at copper interfaces under single-mode and dual-mode initial pe...
Effect of surface perturbations on capacitors
Capacitors are fundamental components in electronic and pulsed-power systems. For parallel-plate capacitors, the well-known textbook formula for capacitance is typically used directly in various appli...
MHD modeling of magneto-deflagration and magneto-detonation modes of air plasma jets in coaxial plasma accelerators in VLEO
Gas-fed coaxial plasma accelerators exhibit distinct magnetohydrodynamic (MHD) discharge modes, yet the gas-field coupling governing their formation and evolution under very low Earth orbit (VLEO) rel...
First-principles calculations of the elastic anisotropy and thermodynamic properties of m-ZrO2 at high pressures and temperatures
While the fundamental properties of monoclinic zirconia (m-ZrO2) are cataloged in high-throughput databases like the Materials Project, such data primarily rely on semilocal functionals that systemati...
Orientation-dependent phase transformation pathways and energy partition in shock-compressed FeCoCrCu high-entropy alloy
High-entropy alloys exhibit excellent mechanical properties under extreme dynamic loading, yet their orientation-dependent shock deformation and energy-partition mechanisms remain unclear. Here, large...
Si(111) quantum well for Si spin qubits with electrons confined in the L valley of the conduction band
In Si(111) quantum wells, a strong biaxial tensile strain applied within the (111) plane is considered to shift the lowest energy point of the conduction band from the Δ valley to the L valley. Electr...
Thermal metadevices for dynamic switching between narrowband and broadband thermal emission based on reversible metal electrodeposition
To dynamically tune the thermal radiation spectrum is critical to applications like radiative cooling, thermal camouflage, and thermophotovoltaics. However, it is currently difficult to achieve a dyna...
Avalanche-gain-enabled voltage-programmable mid-infrared spectral sensing with a graded-bandgap HgCdTe photodiode
Miniaturized infrared spectrometers are vital for portable sensing, yet most single-detector computational schemes prioritize spectral encoding while overlooking weak-signal requirements in mid-infrar...
Controlled trap formation in SiC metal–oxide–semiconductor structures via gate bias stress and its impact on the performance of metal–oxide–semiconductor field-effect transistors
We regulated trap formation in silicon carbide (SiC) metal–oxide–semiconductor (MOS) structures by applying gate bias stress and evaluated how traps at different energy levels degrade the performance...
Magneto-optical effects in ferrite garnet thin-film structures and single-crystalline substrates
The Faraday and Kerr magneto-optical effects in thin-film structures based on the yttrium iron garnet Y3Fe5O12 and bismuth-substituted yttrium iron garnet BiY2Fe5O12, with layer thicknesses not exceed...
Hexagonal warping control of exceptional points in topological insulator–ferromagnet heterojunctions
Exceptional points (EPs) are non-Hermitian degeneracies, where both eigenvalues and eigenvectors coalesce, which are fundamentally distinct from their Hermitian counterparts. In this study, we investi...
A computational alloy design framework for the promotion of amorphous grain boundary complexions
Amorphous grain boundary complexions have been shown to be radiation tolerant interfaces that can also reduce grain boundary embrittlement, marking them as favorable microstructural features. However,...
The influence of matrix and ultra-high-molecular-weight polyethylene (UHMWPE) components on the response of four UHMWPE composites to shock load
The dynamic responses of four varieties of ultra-high-molecular-weight polyethylene (UHMWPE) composites to mechanical shock perturbation are probed through plate-impact experimentation. The four compo...
Miniaturized broadband computational spectrometer based on graphene microelectromechanical system
Miniaturized spectrometers open new avenues for on-chip and portable optical sensing, with broad applications in fundamental research, biomedical analysis, and consumer electronics. Herein, we propose...
Nonlinear loss of runway friction under water contamination with altitude from SPH-FEM simulations and field tests
The mechanism underlying the deterioration of the aircraft tire–runway friction coefficient under conditions of water accumulation and runway contamination at high-altitude airports remains unclear. E...
First-principles study of incorporation and migration of Sn in GaN
We present a first-principles (density functional theory) study of the thermodynamic stability and migration of Sn-related defects in GaN. Formation energies of SnGa, VGa, and the SnGa–VGa complex wer...
Optical transparency of LiF (100) shock compressed to ∼360 GPa
High-purity [100] lithium fluoride (LiF) is the most widely used optical window in dynamic compression experiments due to its wide bandgap and well-characterized mechanical response. Recent plate-impa...
Power-law transient leakage in Czochralski silicon pn-junctions: Dispersive transport induced by exponential trap distributions
We propose an analytical model for the power-law transient leakage current observed in pn-junctions fabricated in Czochralski silicon (Cz-Si). The model assumes an exponential distribution of trap sta...
Structural distortion and small-polaron conduction in Ga-doped LiMn2O4 cathode material
Ga-doped LiMn2O4 was synthesized via solid-state reaction. X-ray photoelectron spectroscopy and x-ray powder diffraction confirm that the samples crystallize in the Fd3¯m space group of the spinel str...