Journal of Applied Physics
Articles in this Issue
Micro-perforated acoustic metastructure for low-frequency sound absorption and ventilation
We present an acoustic metastructure that features a micro-perforated resonator to combine broadband sound absorption with efficient ventilation. Adjusting the perforation parameters enables micro-per...
Drude–Smith ultrathin films for lightweight unpolarized broadband electromagnetic absorbers
Increasing the efficiency of thin film absorbers is critical for various applications, including photovoltaics and photodetection. Although high-performance thin film absorbers have been realized, mos...
<i>Ab initio</i> investigation of the Cr substitutional defect in α-quartz for quantum applications
Spin defects based on transition metals in wide-bandgap oxides represent compelling building blocks for quantum information technologies because they host highly localized electronic states with spin-...
Phonon-confinement theory of thermal conductivity in ultrathin silicon films
The thermal properties of solids under nanoscale confinement are currently not understood at the atomic level. Recent numerical studies have highlighted the presence of a minimum in the thermal conduc...
Schrödinger–Poisson–drift–diffusion modeling of wurtzite materials in cylindrical geometries
A Schrödinger–Poisson–drift–diffusion framework is presented for efficient simulation of semiclassical carrier transport near equilibrium. To reduce computational cost, a partitioned scheme is employe...
Perovskite nanoparticle-based nonlinear optical devices for ultrafast photonics applications
Metal halide perovskites have shown wide potential applications in various fields such as light-emitting diodes, photodetectors, and lasers in recent years due to their high photoelectric conversion e...
12.8 million Q factor cylindrical resonator with optimized thermoelastic dissipation after thin films coating
The influence of various thicknesses and combinations of different metal films coated on the surface of fused silica cylindrical resonators subjected to thermoelastic dissipation was investigated. For...
Precession electron diffraction for orientation analysis in one-dimensional heterostructures
Understanding crystallographic orientation relationships at buried nanoscale interfaces is crucial for optimizing the functional performance of heterostructures in thermoelectric and optoelectronic ap...
High-density domain nanodot arrays and domain wall current characterization in lithium niobate thin films
Ferroelectric nanostructures demonstrate significant potential for novel electronic devices due to their unique conductive properties. This study employs piezoelectric force microscopy tip poling to f...
Microwave device engineering with YIG materials
Yttrium Iron Garnet (YIG, Y3Fe5O12) has long been recognized as a foundational material in microwave engineering, owing to its exceptional combination of low magnetic losses, high resistivity, and tun...
Mechanical metamaterials with negative stiffness under compressive, tensile, and shear loadings
Mechanical metamaterials are rationally designed structures with engineered architectures that, in theory, can lead to any desirable mechanical properties. Recently, great interest has especially been...
Modification of adhesion between microparticles and engineered silicon surfaces
A key challenge in performing experiments with microparticles is controlling their adhesion to substrates. For example, levitation of a microparticle initially resting on a surface requires overcoming...
High-performance solar-blind optoelectronic synaptic device based on N-doped Ga2O3 nanowire network for neuromorphic computing
Optoelectronic synapses use optical signals as modulation inputs and offer advantages such as low-power consumption, non-contact operation, and high parallelism. However, devices operating in the visi...
Fabrication and characterization of 115 GHz double split ring resonator
Electron paramagnetic resonance (EPR) spectroscopy requires an efficient coupling of electromagnetic waves over a sample volume. However, it is often challenging when EPR is operated in the terahertz...
Trapping and sympathetic cooling of Th3+ ions in a linear ion trap
We demonstrate a modified integration of a linear ion trap with a time-of-flight mass spectrometer optimized to enhance the loading and detection of Th3+ ions. A phase-locked radiofrequency/high-volta...
Applying time-resolved photoluminescence in scanning near-field optical microscopy to map charge-carrier dynamics in CsPbBr3 nanocrystals
Charge-carrier dynamics in perovskite materials are commonly investigated using techniques that either provide spatially averaged information or probe only a single point, often overlooking nanoscale...
Correlation between morphology and magnetic properties of Fe66Ge34 films
We demonstrate the effect of varying surface temperature during co-evaporation of iron and germanium on the film morphology, segregation, magnetic anisotropy, and magnetization configuration and rever...
Surface and sub-surface porosity effects on the initial free surface expansion in shocked single crystal aluminum
Defects and roughness at a material’s surface can allow for the formation of a material jet when a shockwave reaches a surface. The formation of a jet can lead to significant material damage of the sh...
CdSeTe solar-cell performance with different dopant types
Four doping conditions were explored for CdTe-based solar cells: p-type As and P, n-type Al, and no intentional doping. In each case, the CdTe absorber was alloyed with Se, but only near the normal fr...
Temperature-driven evolution of phonon-coupled carrier dynamics in lanthanum hexaferrite probed by terahertz spectroscopy: Implications for THz photonics
Carrier–phonon coupling plays a central role in charge transport, energy relaxation, and device stability in the terahertz (THz) regime, making its investigation crucial for condensed-matter physics a...
Synthesis of hybrid graphene/silicon thin film Schottky junctions for photodiode applications
CVD-grown graphene was transferred to p-type silicon films using wet transfer technique to create Schottky junction-based photodiodes. Electrical transport and optoelectronic properties of the produce...
Influence of nanoscale interfaces on the dynamic deformation and spall failure of Cu–Fe alloy microstructures
Additively manufactured immiscible Cu–Fe alloys can exhibit a distribution of nanoscale interfaces due to the distribution of nanoscale clusters in the equilibrium and metastable phases. Molecular dyn...
High-temperature structural, thermal, and magnetic properties of the van der Waals semiconductor FePS3
Quasi-two-dimensional (2D) semiconductors based on metal thio(seleno)phosphates exhibit unique van der Waals layered structures and tunable physical properties, positioning them as promising candidate...
Probabilistic deep neural network-based inverse design method for the underwater acoustic metasurface of customizable absorption performance
Underwater acoustic metasurfaces have attracted significant research attention for their subwavelength thickness and superior acoustic wave manipulation performance, for example, broadband sound absor...
Flat-top picosecond laser texturing of CFRP: Biomimetic hierarchy for tunable wettability and high-strength AA7075/CFRP bonding
Carbon-fiber-reinforced polymer (CFRP) composites are widely used in lightweight aerospace, automotive, and wind-energy structures owing to their high specific strength and stiffness and durability. H...