Journal of Applied Physics
Articles in this Issue
Chiral near-perfect absorption at exceptional points in non-Hermitian terahertz metasurfaces
This work demonstrates chiral near-perfect absorption at an exceptional point via a loss-asymmetric, non-Hermitian metasurface that synergistically combines chiral exceptional points with a reflective...
Probing ferroelectricity in Zr/Nb substituted BaTiO3-relaxors by piezoresponse force microscopy
For lead replacement in established Pb-based relaxor ferroelectric materials, substituted barium titanate is among the most promising candidates. The ceramic samples investigated in this study are B-s...
Geometric dependence of Josephson junction normal-state resistance for superconducting qubit design
Josephson junctions (JJs) are critical components in superconducting quantum circuits, where their electrical properties directly determine qubit transition frequencies. While advances in fabrication...
Singular topological states for compact subwavelength analog mechanical computers
As digital computers (DCs) approach their performance limits, further advancement in artificial intelligence (AI) demands a paradigm shift toward more powerful computing architectures. Recent developm...
Enhancing the structure and piezoelectric properties of AlN/Mo multilayers via insertion of an AlN seed layer
In this work, systematic investigations were conducted to explore the effects and mechanisms of sputtering conditions on the structure and piezoelectric properties of aluminum nitride (AlN) films. Spe...
Engineering the optimal filter: Quantitative assessment of linear noise-reducing filters in spectroscopy
We capitalize on the intrinsic separation of information and noise in reciprocal space to quantitatively investigate linear noise-removal filters in spectroscopy. This is accomplished with a cost func...
Fabrication of all-solid-state thin-film thermal switching devices using Y–Mg thin-film as the thermal switching layer
We fabricated and demonstrated the all-solid-state thermal switch device that uses Y–Mg alloy as the thermal switching layer. The fabricated devices consisted of seven layers (ITO/Y-Mg/Pd/thin-WO3/Ta2...
Investigating the roles of hydrophobicity and electrostatics in the particle-scale dynamics and rheology of dense microgel suspensions
Colloidal microgel particles such as poly(N-isopropylacrylamide) (PNIPAM) shrink reversibly in an aqueous medium due to the expulsion of water at a volume phase transition temperature (VPTT) ∼33 °C. R...
Small polarons in selenium-doped ferroelectric Sn2P2S6 crystals
Tin hypothiodiphosphate (Sn2P2S6) crystals, consisting of Sn2+ ions and (P2S6)4− anionic groups, are ferroelectric semiconductors below 337 K. Doping with Se forms (P2SeS5)4− anions and reduces the tr...
Mechanically concealed holes
When a hole is introduced into an elastic material, it will usually act to reduce the overall mechanical stiffness. A general ambition is to investigate whether a stiff shell around the hole can act t...
Dielectric function representation by fractional (non-integer) oscillators in the model-based optical metrology
The fractional oscillator model, which generalizes the classical linear harmonic oscillator in the framework of fractional calculus, is described. A concept of fractional integral/derivative, i.e., th...
Thin-film magnomechanics in the low gigahertz regime
The coherent interaction between magnons and phonons in the low-GHz regime represents an unexplored frontier in hybrid magnonics, critical for quantum information processing and microwave-to-acoustic...
Analysis of In <i>x</i> Ga1− <i>x</i> N growth rate in atmospheric-pressure metal-organic vapor phase epitaxy: Insights into incorporation and desorption processes of GaN and InN for precise growth control
We grew GaN/InxGa1−xN superlattices (SLs) on GaN/sapphire substrates by atmospheric-pressure metal-organic vapor phase epitaxy (MOVPE) and determined the InxGa1−xN growth rate using high-resolution x-...
Eigenmodes in random chiral metamaterial multilayers: Double-grid finite-difference frequency-domain analysis
Eigenmode analysis was conducted on disordered multilayer structures comprising chiral metamaterials and normal materials utilizing the double-grid finite-difference frequency-domain method. This stud...
Uniform macroscopic current in concentric field emitter architectures
Concentric-ring field emitter architectures are relevant to vacuum micro- and nanoelectronic applications. In view of field electron emission applications for these ring-emitters, a central question i...
Study of Sb segregation and As diffusion in InP/GaAsSb/InP heterostructures using soft and hard x-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry
We investigate the chemical composition of InP/GaAs0.51Sb0.49/InP heterostructures, focusing on a precise location of the major elements to search for potential Sb segregation and As diffusion. Angle-...
Magnon–photon coupling in the YIG-based disk and ring microcavities
Optomagnonic dielectric resonators offer a promising platform for the bidirectional conversion of microwave and optical photons at the single quantum level. Current implementation of such a conversion...
Effect of soft annealing on optoelectronic performances of Ti-hyperdoped Si photodiodes
We investigate the impact of soft furnace annealing (250–450 °C) on the optoelectronic performance of Ti-hyperdoped Si photodiodes. The annealing step, introduced between Ti ion implantation and nanos...
A quantitative map of lattice compatibility in metal nitride heteroepitaxy
Lattice-matched heteroepitaxy of metal nitrides enables the integration of distinct material properties into multifunctional metal nitride devices. This work systematically maps lattice matching acros...
Cooling performance of top-side polycrystalline diamond integration in RF-power N-polar GaN high-electron-mobility transistors predicted using a robust modeling platform
This study evaluates the cooling performance of top-side polycrystalline diamond (PCD) integration as an advanced thermal management strategy for N-polar GaN high-electron-mobility transistors (HEMTs)...
Algorithm design and specific applications of artificial intelligence in the field of surface structure communications
In the past decade, programmable metasurfaces have attracted widespread attention due to their ability to manipulate electromagnetic waves at the subwavelength scale in space. By enabling controllable...
Purely optical macroscopic trap for alkaline-earth and similar atoms
We consider laser cooling and trapping of alkaline-earth and similar atoms in a bichromatic field resonant to a closed optical transition 1S0→1P1 or 1S0→3P1. It is shown that new kinetic effects emerg...
Development of simultaneous single-event time-of-flight Rutherford backscattering spectrometry and elastic recoil detection
Simultaneous time-of-flight (ToF) Rutherford backscattering spectrometry (RBS) and elastic recoil detection (ERD) were combined with a focused ion beam to establish a platform for comprehensive three-...
Study on the reactive material-illed structure under multiple impacts: Segmented fracture mechanism of the shell
The reactive material filled structure (RMFS) possesses a self-distributed energy release behavior, which enables an adaptive damage effect to the targets. Such energy release behavior strongly depend...
Phase-interrogation surface plasmon resonance biosensor based on a dynamic spectroscopic ellipsometer
This paper describes a phase-sensitive high-throughput surface plasmon resonance (SPR) biosensor based on a dynamic spectroscopic ellipsometer. The proposed scheme enables dynamic extraction of spectr...