Journal of Applied Physics
Articles in this Issue
Berry curvature contribution towards 1<i>s</i> − 2<i>p</i>± interlayer exciton ultrafast transition within a <i>R</i>-WSe2/MoSe2 heterobilayer
We calculate the spectrum of interlayer neutral excitons in transition-metal-dichalcogenide WSe2/MoSe2 heterobilayers in R-stacking configuration. Most saliently, we show that, similar to neutral exci...
Distinct partial and complete droplet bouncing states on (super) hydrophobic leaf surfaces with ultra-low- to high-adhesion textural features
We report on surface texture and tilting-based microdroplet impact dynamics on four distinct plant species, namely, Kalanchoe, Ziziphus, Mesua, and Litchi. Herein, conditions responsible for partial a...
Model calculations of lattice strains and rotations associated with surface acoustic waves
Magnon–phonon coupling has garnered increasing interest in condensed matter physics due to its rich physics and potentials for applications in devices with novel functionalities. Surface acoustic wave...
Carrier thermalization and biexciton formation in a polar ZnO/Zn0.84Mg0.16O quantum well probed by ultrafast broadband spectroscopy
We investigate the ultrafast dynamics of excitons in a 2.6 nm-thick ZnO/Zn0.84Mg0.16O quantum well grown on a c-axis sapphire substrate, using non-degenerate time-resolved pump–probe spectroscopy. A p...
Kinetic modeling of cathode plasma formation and expansion in a pulsed high-voltage anode–cathode gap
A one-dimensional (1D), relativistic, particle-in-cell Monte Carlo collision (PIC–MCC) model is developed to study cathode plasma formation and expansion in pulsed, high-voltage diodes. The 1D PIC–MCC...
Tunable electronic properties, band alignments, and charge transfer of ferroelectric MoSi2N4/In2Se3 van der Waals heterostructures
Van der Waals heterostructures (VDWHs) have been used to engineer novel electronic properties of two-dimensional (2D) material systems in recent years. Leveraging the excellent mechanical and electron...
Mechanisms of sodium hydroxide (NaOH)-catalyzed sealing of SiO2/SiO2 direct bonding interfaces
The introduction of NaOH catalysts at an SiO2/SiO2 hydrophilic bonding interface is investigated. Combining bonding energy measurements, interface hard x-ray reflectometry, transmission electron micro...
Ultra-low-energy nitrogen ion interactions with diamond surfaces: Impact of crystal orientation on bonding and thermal stability
This study investigates the influence of crystal orientation on nitrogen incorporation, bonding configurations, and thermal stability in (100)- and (111)-oriented single-crystal diamond (SCD) surfaces...
<i>In situ</i> optical monitoring and effect of initial film temperature on pulsed laser-induced dewetting of ultrathin Ag films
The dewetting conditions of ultrathin Ag films under pulsed laser annealing were investigated. Ag films with a nominal average thickness of 9 nm were deposited on fused silica substrates by DC magnetr...
Ground state rotational and kinetic temperatures of C2 molecules in a laser-produced plasma
This study presents an experimental comparison between rotational and kinetic temperatures of molecular species in a laser-produced plasma, utilizing tunable laser absorption spectroscopy. We analyzed...
Simplified four-band k · p model to consider k-dependent band-mixing effects in electron intersubband scattering: Application to quantum wells and quantum cascade lasers
Recently, a first-order k⋅p Kane model was introduced to include k-dependent band-mixing in intersubband scattering [Mac et al., Phys. Rev. B 110, 165304 (2024)]. This work proposes to reduce the eigh...
Simultaneously enhanced mobility and stability in In2O3 thin-film transistor by nitrogen modification
Oxide thin-film transistors (TFTs) with high mobility and excellent stability are extremely desired for advanced displays. In this work, we simultaneously enhanced the mobility and stability of In2O3...
Exploring magnetoelectric coupling through lattice distortions: Insights from a pantograph model
Multiferroic materials exhibit the coexistence of magnetic and electric order. They are at the forefront of modern condensed matter physics due to their potential applications in next-generation techn...
Accurate heat flux formula and thermal conductivity calculation in molecular dynamics simulations with machine learning potentials
An accurate formula for the atomic heat flux that can be used in molecular dynamics (MD) simulations driven by machine learning potentials is derived and discussed. The equivalence of the Torii and Fa...
Multi-fidelity framework and uncertainty quantification for thermal conductivities of aluminum alloys
Building surrogate models to predict thermal conductivity as a function of composition and temperature is essential for a wide range of applications from material design and optimization to uncertaint...
Experimental characterization of azimuthal and axial oscillations in a microwave discharge neutralizer
This study presents the first successful experimental observation of azimuthal oscillations in a microwave discharge neutralizer across a wide range of operating conditions. The neutralizer was operat...
Generation process of hole traps thermally induced in SiO2/GaO<i>x</i>/p-GaN metal-oxide-semiconductor structures
The impact of post-deposition annealing (PDA) and a gallium oxide (GaOx) interlayer on the generation of fast-response hole traps, which cause surface potential pinning, in SiO2/p-GaN MOS structures w...
Fracture strength of Czochralski silicon wafers: Statistically rigorous measurement and dopant effects
The fracture of silicon wafers is a critical concern in the manufacturing of microelectronic devices, solar cells, and micro-electro-mechanical systems, making the study of silicon wafer fracture stre...
Optimal design of passive Tesla micromixers for enhanced mixing and gradient performance in multiphase material forming
The rapid development of three-dimensional (3D) printing technology has led to the increasing demand for micromixers capable of fabricating functionally graded materials. To simultaneously achieve gra...
Molecular dynamics simulation of effect of void on subsurface defect evolution in nano-cutting of γ-TiAl alloy
Defects such as voids are an unavoidable occurrence during the processing and preparation of materials, which can significantly impact their cutting performance and surface quality. To investigate the...
Bose–Einstein modelling of temperature-dependent phonon-assisted band-to-band radiative recombination in 4H-SiC
Temperature-dependent variation in the intensity of 390 nm phonon-assisted, band-to-band radiative recombination in 4H-SiC is measured from −156 to 86.5 °C. Our data show a consistent rise in electrol...
Epitaxial growth of up to 120× {Si0.8Ge0.2/Si} bilayers in view of three dimensional dynamic random access memory applications
Epitaxially grown Si/Si1−xGex multi-stacks with ≥100 bilayers (≥200 sublayers) are being considered for three dimensionally vertically stacked dynamic random access memory devices. Because of the latt...
Boron distribution in two-phase superconducting silicon-on-insulator by atom probe tomography
We investigate with Atom Probe Tomography (APT) the distribution of boron in a thin superconducting Silicon-On-Insulator film (33 nm) obtained by high-dose ion implantation (2.5 × 1016 at/cm2) and sin...
Strong grain size effect on flexoelectric response of Ba0.67Sr0.33TiO3 ceramics
The influence of the grain size on the dielectric and piezoelectric properties of ceramics has been extensively studied, but its impact on the flexoelectricity remains largely unexplored, particularly...
Electroless Cu plating on poly(ethylene 2,6-naphthalate) with plasma surface modification and its application to high-frequency flexible printed circuits
Poly(ethylene 2,6-naphthalate) (PEN) is a material characterized by its low dielectric loss tangent and high transparency, making it an attractive dielectric film for flexible circuits in wearable dev...