Journal of Applied Physics
Articles in this Issue
THz array of graphene disks: Classification of surface plasmon modes and their excitation
We suggest a classification scheme for the eigenmodes in an array of graphene disks. The classification is based, first, on the division of the possible solutions in TE and TM modes and, second, on th...
Influence of an underlayer on the crystallization of thin Ge-rich Ge–Sb–Te films
Ge-rich Ge–Sb–Te alloys exhibit a high (>350 °C) crystallization temperature, which is compatible with applications requiring a high thermal stability such as the use of non-volatile memories i...
A design of frequency-isolated full-k-space flatband in phononic crystals for ultrasensitive detection and high-Q cavities
Flatbands in artificial lattices hold significant potential for novel applications. They are generally constrained to specific regions in momentum space and can be obtained by tight-binding approximat...
First-principles simulation of Sb-based superlattice for infrared detection with an <i>ad hoc</i> functional
The 6.1 Å family III–V semiconductors are promising for infrared detection due to the flexibility in wavelength tuning as well as the excellent technical compatibility. Theoretical design of type-II s...
Density functional theory insights into NO gas sensing of Ti-doped ZnO monolayer with oxygen vacancy
The objective of this study was to investigate the adsorption of NO gas molecules on both pure and Ti-doped defective ZnO monolayers, along with their potential application as NO gas sensors, using fi...
Polarization influence on femtosecond laser-induced surface damage and electron plasma ultrafast dynamics in sapphire
This study investigates the impact of the polarization direction of femtosecond laser relative to the sapphire crystal axis on surface damage threshold and ultrafast electron plasma dynamics, which we...
Machine learning and deep learning algorithms for prediction of different parameters of a 2D permanent magnetic lattice
In this paper, we consider artificial intelligence algorithms in Machine Learning (ML) and Deep Learning (DL) models as an innovative method for improving computational efficiency to predict a large a...
Investigation of the structural, electronic, magnetic, and mechanical characteristics of double half-Heusler alloys V2Ni2Z′Z′′ (Z′ = Al, Ga and Z′′ = Sb, Sn) using <i>ab initio</i> computational methods
The electronic, magnetic, elastic, and vibrational properties of new double half-Heusler (DHH) alloys V2Ni2Z′Z′′ are investigated within the density functional theory (DFT) calculations. All investiga...
The field emission current formula for metallic nanotips at temperatures above absolute zero
With proper consideration of curvature effects, for a metallic field emitter tip having apex radius Ra≥5 nm operating in low thermal-field emission regime (corresponds to field electron emission at lo...
Molecular dynamics investigation of shock-induced microstructure evolution in single crystalline CoCrNi medium entropy alloy
The atomic-scale deformation mechanisms under shock compression of single-crystal CoCrNi medium entropy alloy were investigated using molecular dynamics simulations. The anisotropic crystal properties...
Magnetic properties of Tm3+ in layered triangular lattices
Rare-earth chalcogenides, ARCh2 (A = alkali metal or monovalent ion; R = rare-earth elements; Ch = O, S, and Se), have been identified as promising candidates for exploring a variety of novel frustrat...
On the role of strain- and doping-induced disorder in epitaxial CaCuO2 films: Lattice and spin dynamics in light scattering response
The infinite layer structure of CaCuO2 (CCO) represents a benchmark system for exploring the physics of CuO2 planes, which play a fundamental role in superconductive behavior at the high critical temp...
The origin of degradation in electrical properties by ion implantation doping of boron in diamond
We investigated the origin of electrical degradation in ion implantation doping and discussed the lowest limit of doping concentration. In this study, we particularly performed the light B doping of a...
Femtosecond wavelength-tunable laser system using gain managed nonlinear amplifier
Optical parametric amplifiers require a seed energy at the spectral range of interest for amplification. In the case of pulsed laser systems, seed pulse characteristics such as spectral energy density...
Enhancing spin diffusion in GaAs quantum wells: The role of electron density and channel width
This study explores the relationship between spin diffusion, spin lifetime, electron density, and lateral spatial confinement in two-dimensional electron gases hosted in GaAs quantum wells. Using time...
The effects of doping on the thermoelectric properties of two-dimensional Nowotny-Juza materials NaBeP and NaBeAs
Two-dimensional Nowotny-Juza compounds have great potential for thermoelectric applications due to their excellent mobility and good transport properties. In this study, the effects of Cu, Al-doped Na...
Elementary responses of analog photodetectors and absolute calibration of their efficiency
A modified Klyshko method for standardless calibration of analog photodetector efficiencies is suggested and experimentally implemented. The method is based on the measurement of the number of inciden...
Enhanced phase transformation in BiFeO3 thin films via synergistic pressure and electric field modulation
In complex multi-field application environments, enhancing the rhombohedral/tetragonal (R/T) phase transition in BiFeO3 (BFO) thin films and making more appearances of R/T morphotropic phase boundarie...
Correlation between atmospheric turbulence and cloud microphysical parameters detected by a novel variable dual field of view multiple scattering Raman lidar
As a crucial component of atmospheric dynamics, atmospheric turbulence significantly influences the interactions between aerosols, clouds, and precipitation and is closely linked to the formation and...
Diffusivity of interstitial hydrogen in In2O3 from defect-pairing reaction kinetics
In2O3 is a transparent conducting oxide that finds widespread applications in transparent electrodes, flat-panel displays, and low-emissivity windows. Interstitial hydrogen (Hi+) in In2O3 gives rise t...
Semipolar (11-22) AlN templates prepared by pulsed hydride vapor phase epitaxy
Single-crystal semipolar (11-22) AlN templates are grown on 2 in. m-plane sapphire substrates via high-temperature hydride vapor phase epitaxy. Pulsed HCl and NH3 precursors are used separately to enh...
Anisotropic exchange spin model to investigate the Curie temperature dispersion of <i>L</i>10-FePt magnetic nanoparticles
We developed an anisotropic exchange spin model that accounts for magnetic anisotropy and evaluated the Curie temperature (Tc) dispersion due to finite-size effects in L10-FePt nanoparticles. In heat-...
Understanding negative-bias-stress-induced instability and hump phenomenon in amorphous In–Ga–Zn–O thin-film transistors: Impact of source/drain contacts and carrier diffusion
Reliability and stability of oxide thin-film transistors (TFT) are a longstanding unsettled research topic and are critical for practical device applications. This work discussed negative gate bias st...