Applied Physics Letters
Articles in this Issue
High-speed optical modulation via reversible phase switching in PIN–PMN–PT single crystals
Optical scattering caused by ferroelectric–ferroelastic domain walls severely limits the electro-optical performance of PMN–PT-based crystals. Poling of the crystals with compositions near the rhomboh...
Phononic combs in lithium niobate acoustic resonators
Frequency combs consist of a spectrum of evenly spaced spectral lines. Optical frequency combs enable technologies ranging from timing, LiDAR, and ultra-stable signal sources. Microwave frequency comb...
Direct Fourier-plane imaging with enhanced depth of field via cross-phase modulation
Optical imaging plays a critical role in various fields, such as biomedical imaging, remote sensing, and environmental monitoring, enabling high-resolution, non-contact, and multidimensional data acqu...
Linewidth broadening factor and relative intensity noise of interband cascade lasers grown on InAs substrate
Interband cascade lasers (ICLs) are energy-efficient mid-infrared light sources that are grown either on the GaSb substrate or on the InAs substrate. While the dynamical characteristics of GaSb-based...
<i>In situ</i> interface engineering enabled high-performance InSnO thin-film transistor incorporating ultrathin Y2O3 layer
Oxide thin-film transistors (TFTs) suffer from negative bias illumination stress (NBIS) instability, which severely limits their application in flat panel displays. In this study, an ultrathin Y2O3 la...
Nanoscale carrier distribution and trap dynamics in supported and suspended WSe2 layers studied by scanning nonlinear dielectric microscopy
The unique electronic and optical properties of atomically thin transition metal dichalcogenides make them promising candidates for advanced device applications. However, their electrical characterist...
Multiple negative differential conductance peaks in interband cascade lasers
We report multiple negative differential conductance (NDC) features observed under both forward and reverse bias voltages in hybrid-cladding interband cascade lasers (ICLs). The ICL with an emission w...
Logic computing-derived near-field radiative thermal encryption
This work presents a comprehensive near-field radiative thermal encryption platform that encodes symbolic information using tristate radiative heat-flux distributions across a two-dimensional array of...
Octylammonium iodide modification of electrodeposition-converted PbI2 for fabricating efficient and stable perovskite solar cells
Electrodeposited perovskite solar cells suffer from limited efficiency (historically below 15%). This study shows that spin coating octylammonium iodide (OAI) onto electrodeposition-converted PbI2 pre...
Dual-site catalysis with engineered electronic interaction in Fe-doped CeO2/FeNC composites for nitrate reduction to ammonia
Single-atom catalysts (SACs) and metal oxides exhibit distinct advantages in nitrate reduction reaction (NO3RR), yet their intrinsic limitations, such as suboptimal adsorption-energy scaling, metal ag...
Absence of detectable spin and orbital pumping from Ni to Nb by out-of-plane ferromagnetic resonance
Excited ferromagnets can pump spin angular momentum, along with possibly orbital angular momentum. Among elemental ferromagnets, Ni has been proposed to exhibit substantial orbital pumping relative to...
Dynamic magnetoelectric effect in multiferroic DyCrO4
The dynamic magnetoelectric (ME) effect of the scheelite-type DyCrO4 has been investigated by measurements of the temperature and magnetic field dependence of the dynamic magnetoelectric coefficient (...
Lattice anharmonicity effects in fluorite oxide single crystals and anomalous increase in phonon lifetime in ceria at elevated temperature
We investigate the temperature dependence of the frequency and linewidth of the triply degenerate T2g zone-centered optical phonon in flux-grown ceria and hydrothermally synthesized thoria single crys...
Advanced approximation for the probability of phonon-assisted tunneling between traps
An approximate analytical expression is proposed for calculating the probability of phonon-assisted tunneling of charge carriers between deep centers (traps) in dielectrics and wide-bandgap semiconduc...
Over 3 kV and ultra-low leakage vertical (011) <b> <i>β</i> </b> -Ga2O3 power diodes with engineered Schottky contact and high-permittivity dielectric field plate
We report over 3 kV breakdown voltage and ultra-low leakage (011) β-Ga2O3 power devices utilizing Schottky barrier engineering and high-permittivity (κ) dielectric (ZrO2) field plate. The (011) orient...
Capillary-assisted self-assembly of glass microspheres for simple and versatile fabrication of voltage-tunable two-dimensional liquid crystal gratings
We present a straightforward yet versatile method for fabricating voltage-tunable two-dimensional liquid crystal (LC) gratings that exhibit high diffraction efficiency and polarization independence. T...
Design and performance study of high-efficiency self-powered photodetectors based on ZnO/X2CO2 (X = Zr, Hf) heterojunctions
This study delves into the structural characteristics, electronic properties, and application potential of ZnO/Zr2CO2 and ZnO/Hf2CO2 heterojunctions for photodetectors. Through lattice matching and fo...
Marangoni-stabilized bubble dynamics enable simultaneous HTC enhancement and CHF delay in dielectric boiling
Boiling of dielectric liquids is limited by a trade-off between efficient nucleation and interfacial instabilities that trigger premature critical heat flux (CHF). In this Letter, we show that the dyn...
Programmable skyrmion subtractor based on ion irradiation
Magnetic skyrmions exhibit great potential for spintronic devices due to their topological stability and low-power operation, with their stability and dynamics regulated by multiple magnetic parameter...
Effects of hydrostatic compression and tension on silicon-vacancy centers in diamond
Hydrostatic deformation is an effective approach for tuning the quantum properties of color centers in diamond, with significant implications for quantum sensing, computing, and communication. Compare...