Journal of Applied Physics
Articles in this Issue
Design and optimization of quasi-optical mode converter for 210-GHz <i>TE</i> 22,6 high-power gyrotrons
High-power pulsed gyrotron oscillators operating in the short millimeter-wave range typically utilize high-order cavity modes, requiring efficient and compact quasi-optical mode converters to maximize...
Dual-channel broadband polarization multiplexing and phase modulation metasurface in GHz band
This paper introduces a dual-channel polarization converter based on a metasurface operating in the GHz band. In channel 1 (9.5–13.5 GHz), the metasurface enables mutual conversion between horizontal...
Gradient-based calibration of the anomalous electron scattering frequency in a Hall effect thruster simulation
When modeling cross-field plasma discharges, particularly with a drift–diffusion assumption, semi-empirical anomalous electron transport is typically needed for the model results to match experimental...
Pairing of multiple types of topological phononic quasiparticles in chiral crystal Pt3I8
Chiral crystals have recently attracted considerable attention in condensed matter physics owing to their intriguing physical properties. In this work, we perform first-principles calculations combine...
Electromagnetically induced transparency in terahertz asymmetric split-ring resonators driven by radiative and non-radiative losses
The classical analog of electromagnetically induced transparency (EIT), manifested using artificially structured materials known as metamaterials, has been a topic of significant interest for enabling...
The electron affinity of HgCdTe
An accurate formula for electron affinity is necessary for the correct modeling of Hg1−xCdxTe devices. We show that the most commonly used formula is inaccurate. We construct a generalized equation fo...
Sparse-view muon computed tomography of an operating research reactor
Directional radiography maps and projected computed tomography images of the ZED-2 research reactor facility at Canadian Nuclear Laboratories (CNL) have been reconstructed using a sparse, asymmetric,...
Phase stability and superconductivity in hydrogenated and lithiated Janus Ga <i>X</i> S2 ( <i>X</i> = Ga, In) monolayers
Hydrogen and lithium functionalization of two-dimensional (2D) materials offers a promising route to enhance electronic properties and induce superconductivity. Here, we employ first-principles calcul...
Machine learning-based prediction of surface roughness and machinability in heat-treated Ni–Cr–Mo low-alloy steels
Nickel–chromium–molybdenum (Ni–Cr–Mo) low-alloy steels are commonly used in automotive and aerospace industries for their strength and fracture toughness. However, these steels are difficult to machin...
The phase diagram of tungsten at high pressure predicted by first principles calculations
By using the particle swarm optimization algorithm, low-energy structures of tungsten are searched under pressure. The results show the double hexagonal close-packed (dhcp) structure is the most stabl...
Broadband and high-quality holographic imaging with complex-amplitude metasurface
Holographic metasurface imaging can reconstruct different types of objects in microwave regions flexibly. In this paper, we present a broadband holographic metasurface that achieves wide bandwidth ima...
Hybrid surface waves at microwave frequencies in superconductor–dielectric layered structures
Surface waves occur at the interfaces between distinct media, with several types identified across different paradigms, including electromagnetic and mechanical surface waves. In this work, I thorough...
Detection and ranging beyond the canonical resolution limit
The canonical range resolution limit in radar, sonar, and LIDAR systems is found to be a special case of a more general resolution limit. The general limit indicates that it is possible to surpass the...
Spin-polarized quantum capacitance in 8- <i>Pmmn</i> monolayer borophene
We investigate the spin-resolved quantum capacitance in 8-Pmmn monolayer borophene, a two-dimensional Dirac material distinguished by its anisotropic and tilted Dirac cone dispersion. Our findings rev...
Enhanced blood–brain barrier opening induced by focused ultrasound combined with microbubble clusters trapped by an acoustic vortex tweezer
Focused ultrasound (FUS) combined with microbubbles (MBs) represents a noninvasive, targeted approach for transiently opening the blood–brain barrier (BBB). While higher MB concentrations can enhance...
Origin of ferromagnetism in Mn and Cr co-doped CdTe thin films: An experimental and theoretical study
Cadmium telluride (CdTe) is a promising semiconductor for spintronic applications, especially when doped with transition metal (TM) ions. We report here on the structural, electronic, and magnetic pro...
Robust reconstruction of optical diffraction tomography for particle imaging in microfluidics
Optical diffraction tomography (ODT) plays a crucial role in achieving high-resolution imaging in microfluidic environments since it enables non-contact, label-free classification and morphological ch...
Use of Cu/Ta2O5/Cu Fabry–Pérot cavities as large-area transparent electrodes for Si photovoltaic devices
The authors propose a sputtered (Cu/Ta2O5/Cu)/Ta2O5 layered material for dual use as antireflective coating and as a large-area electrode for silicon photovoltaic devices. We experimentally demonstrat...
Sensitive detection of glucose enantiomers using open-ring resonator-based metamaterial sensor
Glucose, as the core substance of energy metabolism in living organisms, exhibits significant differences in bioavailability, metabolic pathways, and physiological functions between its d- and l-enant...
Electronic transport properties and stability of 2D electron gases on Si3N4/AlOx//KTaO3 heterostructures
We report on the successful stabilization of a two-dimensional electron gas (2DEG) in Si3N4/AlOx//KTaO3(001) heterostructures. Electronic transport measurements reveal that the AlOx layer thickness cr...
Magnetic skyrmion-domain wall hybrid based synapse and ReLU-maxpooling function for convolutional neural network
Spintronic-based neuromorphic hardware offers high density and rapid data processing at nanoscale lengths by leveraging magnetic configurations like skyrmion and domain walls. Here, we present the max...
Liquid crystal transmissive metasurfaces as electrically tunable millimeter-wave transmission modulators
We investigated liquid crystal (LC) transmissive metasurfaces that can be used as electrically tunable millimeter-wave (MMW) modulators. The examined device was composed of orthogonally combined wire-...
Crossover from propagon to diffuson thermal transport in SnTe due to nanodiamond inclusions leads to ultra-low lattice thermal conductivity
The “phonon-glass electron-crystal” is an infamously challenging thermoelectric material design principle due to the interconnectedness of thermal and electronic transport in materials. Here, the inco...
Rapid eutectic growth kinetics of binary Ni–Ge alloy under acoustic levitation and dynamic microgravity states
The rapid eutectic growth mechanism within liquid Ni33Ge67 alloys was investigated by both acoustic levitation and drop tube techniques, where the maximum liquid undercoolings achieved 136 K (0.13 TL)...
Low-temperature XRD study of ferroelectric phase transition and enhanced magnetodielectric effect in Tb1− <i>x</i> In <i>x</i> MnO3
This study investigates the structural, dielectric, and magnetodielectric properties of indium-doped TbMnO3 (Tb1−xInxMnO3, x = 0.00, 0.05, 0.075) synthesized via the solid-state method. Low-temperatur...