Journal of Applied Physics
Articles in this Issue
Compact beam control via non-periodic tantalum pentoxide high contrast gratings in GaN green laser
This study demonstrates a gallium nitride (GaN)-based green laser integrated with a non-periodic tantalum pentoxide (Ta2O5) high contrast grating (HCG). By introducing abrupt wavefront phase changes t...
Physics of sample charging during x-ray photoelectron spectroscopy: Insights from experiments with thin film insulators
Sample charging during x-ray photoelectron spectroscopy measurements of poorly conducting samples is a widely recognized concern that seriously complicates the analysis of chemical bonding. The high c...
Bulk modulus and thermal expansion of rare-earth tetraborides RB4 (R = Gd, Tb, Dy, Ho, and Tm) via <i>in situ</i> x-ray diffraction
X-ray diffraction experiments were conducted on the rare-earth tetraborides RB4 (R = Gd, Tb, Dy, Ho, and Tm) under high pressure at room temperature and low temperature at atmospheric pressure to inve...
Identification and monitoring of scattered light noise sources in laser interferometers with adaptive algorithms
Gravitational waves (GWs) are ripples in space–time produced by accelerating compact objects such as a binary system made of two black holes or neutron stars and about to merge. To detect GWs, km-scal...
Investigations of domain wall dynamics in ladder domain wall devices for neuromorphic computing
Neuromorphic computing (NC) has drawn enormous attention from the research community for its efficacy in artificial intelligence. NC aims to emulate the neurobiological features of neurons and synapse...
Influence of tin concentration on the electronic structure and ferroelectric behavior of barium titanate: Experimental and first-principles insights
To meet the growing demand for energy, multimodal energy conversion systems, such as photoferroelectrics, are receiving increased attention. Among these, oxide perovskites like Sn substituted barium t...
Prospects and challenges of compound conductors for advanced interconnect applications
The resistance of Cu interconnects rises rapidly with decreasing size due to limited barrier and liner scalability and increasing electron scattering at surfaces and grain boundaries. This presents a...
Noise limits for dc SQUID readout of high-<i>Q</i> resonators below 300 MHz
We present the limits on noise for the readout of cryogenic high-Q resonators using dc Superconducting Quantum Interference Devices (SQUIDs) below 300 MHz. This analysis uses realized first-stage SQUI...
Ultimate energy conversion of ferroelectric ceramics with ultrahigh polarization under shock wave compression
The ultimate energy conversion of ferroelectric (FE) materials possesses the advantage of high pulse power current output capability, which has attracted great attention in scientific research and hig...
Cubic-nonlinearity enhancement via homogenization of a composite material containing truncated spheroidal particles with distributions of shapes
Closed-form expressions were derived for depolarization dyadics relevant to electrically small particles immersed in a cubically nonlinear uniaxial dielectric ambient medium. The particles considered...
First-principles calculation of the effects of In, Ga, and Al on the stability and mechanical properties of AgCu alloy
Silver–copper solder is extensively utilized in electronic packaging; however, its application is constrained by a relatively high melting point and insufficient mechanical strength. Although experime...
Halide perovskites for emerging applications beyond photovoltaics: Recent progress and future prospects
Metal halide perovskite (MHP) semiconductors have been widely known for their high-efficiency records in photovoltaic applications. This achievement has been possible due to their excellent optical an...
Constructing epoxy polymer with significantly increased dielectric strength through molecular design by introducing deep trap
The demand for epoxy resin (EP) with superior dielectric strength is critical in advanced power equipment. Here, we aimed to construct EP with enhanced dielectric strength via molecular design. Simula...
Nanoscale control of LaAlO3/SrTiO3 conductance beyond the polar catastrophe
Conductive atomic force microscope (c-AFM) lithography can be utilized to create a wide range of LaAlO3/SrTiO3 (LAO/STO)-based nanoelectronic devices in a reconfigurable manner. Experiments were gener...
Optical multiplexing for channel reduction in scintillator-based muon tomography system
Muon tomography leverages cosmic-ray muons for non-destructive imaging of dense and shielded objects. However, large-area scintillator-based detectors typically require a high number of readout channe...
Studies of specific action integral and electro-thermal instabilities in the sub-microsecond underwater electrical explosions of shaped foils
We present the results of two studies: (1) on the specific action integral h and (2) on the electrothermal instability (ETI) during underwater electrical explosions of different material foils. Values...
Optimized thickness on resistivity switching of the solution-derived HfO2 device
The effects of solution-derived HfO2 film thickness on the resistive switching and conduction mechanism of Ag/HfO2/Pt memory devices were investigated. The device exhibited improved operating voltage...
Investigating conduction band stability in SrTiO3
We present a comprehensive investigation of the electronic structure of SrTiO3 through experimental x-ray emission spectroscopy, x-ray absorption spectroscopy (XAS), and density functional theory calc...
Nd3+ as effective sensitizing and deactivating ions for 2.84 <i>μ</i>m lasers in Ho3+-doped LuYO3 crystal
In this study, a Nd,Ho:LuYO3 single crystal is grown using the floating-zone method. The spectral properties of the crystal are investigated and compared with those of Ho:LuYO3. The lifetimes of Ho3+:...
Deep level defects in MOCVD-grown <i>β</i>-(Al<i>x</i>Ga1−<i>x</i>)2O3
The properties of deep level defects within Si-doped β-(Al0.10Ga0.90)2O3 epitaxial layers grown by metalorganic chemical vapor deposition (MOCVD) were characterized by deep level optical spectroscopy...
Erratum: “Point defects in Ga2O3” [J. Appl. Phys. 127, 101101 (2020)]
Spatiotemporal measurement of non-equilibrium density in switching arcs using two-color quadri-wave lateral shearing interferometric wavefront sensor
Addressing the challenge of precise plasma density diagnostics in switching arcs, this study proposes a novel measurement approach based on two-color quadri-wave lateral shearing interferometry wavefr...
Chemical reaction mechanism between trimethylgallium and oxygen for β-gallium oxide growth: Thermodynamic and experimental studies
The metalorganic chemical vapor deposition (MOCVD) dynamics of beta-gallium oxide (β-Ga2O3) growth using trimethylgallium (TMGa) and oxygen as precursors were investigated through both theoretical the...
A first-principles investigation of halogen doped diamond and its application to quantum technologies
Defect centers in diamond have attracted considerable attention for the development of emerging quantum technologies, for example, quantum sensors and spin qubits. Nitrogen vacancy (NV) is the most we...
Mechanisms for oxygen vacancy defect migration in SrTiO3/NiO heterostructures: Effect of interface layer chemistry and misfit dislocation structure
Perovskite-based oxide heterostructures display promising properties resulting from interface phenomena, making them good candidates for next-generation solid oxide fuel cell electrolytes. Among the d...