Applied Physics Letters
Articles in this Issue
Brewster reflection-enhanced electro-optic sampling for high-sensitivity terahertz time-domain spectroscopy
We report an electro-optic sampling (EOS) scheme that uses the reflection Brewster effect from a single ZnSe window surface to enhance EOS sensitivity. By directing the probe beam near its Brewster an...
Exchange bias in gap-free ferromagnetic/antiferromagnet heterostructures under zero-field-cooling
The exchange bias (EB) effect, a ubiquitous phenomenon at ferromagnetic/antiferromagnetic interfaces, plays a pivotal role in advancing high-sensitivity magnetic data storage and high-density spintron...
Defect-dominated resistive switching of 2D MoTe2 nanosheets for artificial synapses and decimal arithmetic
In this work, the defect-dominated resistive switching (RS) behaviors and synaptic functions are studied in two-dimensional MoTe2 nanosheets. Different from previously reported phase-transition RS per...
Ultralow level all-optical self-switching empowered by merging bound states in the continuum
We report all-optical switching driven by ultralow intensities in silicon photonic crystal nanostructures empowered by merging bound states in the continuum (BICs). A merging BIC is realized by modula...
Utilizing machine learning in the three-omega method to predict thermophysical properties with low variation
The three-omega method offers a precise and simple technique for measuring the thermal conductivities of a wide range of materials. Utilizing nonlinear data enhances the determination of multiple ther...
Modulated amplitude reflectance spectroscopy to map in-channel charge carrier concentration and drift velocity in organic field effect transistors
Organic semiconductors have a range of applications, including flexible electronics and spectrum-optimized photovoltaics. However, applications of these materials have been constrained by low device e...
Relaxation-free HgCdTe heteroepitaxy via lattice-matching: X-ray reciprocal space mapping characterization and dual-color focal plane array performance validation
As the preferred material for high-performance infrared detection, the device performance of mercury cadmium telluride (HgCdTe) fundamentally depends on the quality of heteroepitaxial films. The longi...
Electrochemically tunable Fe3+-incorporated hydrogels as structural microwave absorbers via battery-integrated design
All-dielectric microwave absorbers have made significant progress in the fields of broadband absorption, conformal design, and environmental durability. However, once the existing absorber is prepared...
Electrical diagnosis of charge relaxation effects on pin-to-water DBD dynamics by Lissajous approaches
This study presents a systematic investigation into the effect of charge relaxation properties on the discharge behavior of a pin-to-water dielectric barrier discharge (DBD) reactor. Potassium chlorid...
Topological subspace-induced multifold topological phase transitions and large winding number in heterostructures
Large winding number as the unique characteristics of topological phenomena has been garnering widespread interest owing to its rich physics and potential applications in enhanced information capacity...
Magnetotransport properties of thin Josephson junctions for spectroscopic applications in the presence of large magnetic fields
We study thin aluminum Josephson tunnel junctions for spectroscopic applications in high in-plane magnetic fields. These devices, fabricated via a double-angle evaporation process, feature junction st...
Superconducting diode effect and nonreciprocal transport properties induced by current biasing
We report a universal strategy to engineer the superconducting diode effect in normal superconductors through current biasing, achieving full-range rectification efficiency (−1≤η≤1) without magnetic f...
Highly efficient linearly polarized LED via surface plasmon integrated with Ag nanocone metasurface
Linearly polarized LEDs (LP-LEDs) hold significant potential for a wide range of advanced optoelectronic applications. Recent approaches employing single metallic gratings, with the double function of...
Anomalous frequency scaling of acoustic phonon damping in freestanding nickel cavities fabricated via laser delamination
Single-shot picosecond (ps) laser-induced delamination allows for the direct generation of suspended membranes from a continuous metallic film, offering a promising platform for the control of ultrafa...
Enhanced electrical properties of flexible AlGaN/GaN HEMT arrays via stress engineering
Wide-bandgap semiconductors, by virtue of their superior electrical and mechanical properties, enable significant performance enhancements in flexible electronics. Here, we report flexible AlGaN/GaN h...
Promoting weak coupling of monolayer ZnSe with noble metal substrates
In the field of optoelectronics, two-dimensional (2D) materials with tunable interfacial structures and bandgap demonstrate significant potential. This study examines ZnSe, a representative II–VI bina...
Giant enhancement of spin–orbit torques with ultrathin high-<b> <i>κ</i> </b> dielectric insertion at the Pt/Co interface
Achieving high spin–orbit torque (SOT) efficiency in heavy metal/ferromagnet (HM/FM) heterostructures is crucial for the development of energy-efficient spintronic devices. Among various factors, the...
A perspective to STM manipulation at the atomic scale
Scanning tunneling microscope (STM) is a powerful tool in the realm of nanotechnology, utilized in diverse disciplines, such as physics, chemistry, and materials science. One remarkable feature of STM...
High-pressure phase transformation and metastable phases of a Si0.29Ge0.71 alloy using a diamond anvil cell
We investigated the high-pressure phase transformation of a Si0.29Ge0.71 alloy grown by a traveling liquidus-zone (TLZ) method. The TLZ-grown Si0.29Ge0.71 alloy was subjected to high pressures of up t...
Enhanced performance and self-driven optoelectronic device based on the MoS2/GaTe van der Waals heterojunction
van der Waals (vdW) heterojunctions hold significant promise for optoelectronic applications due to their high-quality interfaces and exceptional fabrication flexibility. In this study, lateral MoS2/G...
<i>In situ</i> nitrogen doping of <b> <i>β</i> </b>-Ga2O3 during MOCVD homoepitaxy: A theoretical and experimental study
The precise control of acceptor doping concentrations in epilayers is critical for fabricating key β-Ga2O3-based power electronic structures, including current-blocking layers, p-type epilayers, and d...
Giant odd-parity magnetoresistance in a non-magnetic two-dimensional electron gas
Odd-parity magnetoresistance (OMR), characterized by its asymmetric response to magnetic field reversal, has remained limited in practical use due to its typically small magnitude and limited control...
Physics-informed two-stage neural network enables computational ghost imaging through unknown scattering media
Imaging through scattering media located behind and in front of the object simultaneously remains a significant challenge in computational ghost imaging, as the reconstructed images are often severely...
Wireless gastrointestinal monitoring capsule via a magnetoelectric composite for high-efficiency energy transfer
Wireless power transfer systems offer significant benefits for real-time gastrointestinal (GI) monitoring due to their durability and non-invasiveness. Here, we present a fully integrated GI monitorin...
<i>In situ</i> detection of sodium nitrate and sodium nitrite using a cascade Fabry–Perot interferometer based on the photothermal effect
Nitrates and nitrites, as food additives, are extensively used in the curing and preservation of meat and vegetable products. Excessive intake can impair the blood's oxygen-carrying capacity and pose...