Applied Physics Letters
Articles in this Issue
A bioinspired photoadaptive self-protection vision system based on CsPbBr3 perovskite photonic synapses
The development of advanced neuromorphic vision systems with intelligent, photoadaptive self-protection requires concerted innovations at both the device and circuit levels. Herein, we proposed a CsPb...
Interfacial anisotropy modulation enables spin textures transitions in V3I8/VI2 heterostructure
This work demonstrates that weak interlayer exchange coupling in lattice-matched V3I8/VI2 van der Waals heterostructures simultaneously preserves monolayer-inherent antiferromagnetic (VI2, 120°-AFM) a...
Single-shot optical precessional magnetization switching of Pt/Co/Pt ferromagnetic trilayers
Ultra-fast magnetization switching triggered by a single femtosecond laser pulse has gained significant attention over the last decade for its potential in low-power consumption, high-speed memory app...
Unveiling distinct defect state and wavelength dependent saturation absorption enhancement mechanism in Bi1.3In0.7Se3 alloy
Alloying induced mid-gap defect states provide an additional transition pathway for controlling nonlinear optical (NLO) behavior, while the corresponding mechanism is still a challenge due to the incr...
High-fidelity image reconstruction from dynamic nonlinear speckles mediated by chlorophyll solution using deep learning
The information recovery of speckles is crucial in applications such as underwater exploration, satellite remote sensing, and biomedical imaging. The interplay of nonlinearity and scattering breaks th...
Optoelectronic synaptic devices based on TMD alloys for image memory and processing
Optoelectronic synaptic devices emulate the parallel processing and low-power characteristics of biological neural systems, enabling real-time image processing and dynamic object tracking. These advan...
Close-contact melting regulated by structured slip surfaces
This paper investigates the close-contact melting (CCM) of phase change materials on effective slip surfaces enabled by superhydrophobic microgroove structures. The CCM of ice cubes on hydrophobic gro...
Sulfonium-based passivation suppresses trap recombination and hysteresis under bright-to-ultra-dim light in perovskite indoor photovoltaics
Lead-halide perovskites (LHPs) are attractive indoor harvesters for self-powered Internet-of-Things (IoT) nodes, yet their output deteriorates under dim lighting (<200 lux) due to intensified t...
Quantum-inspired genetic algorithm for designing thermally conductive polymers
Designing polymers with high intrinsic thermal conductivity (TC) faces challenges due to the vast chemical space and substantial resource requirements of conventional methods. Here, we develop a quant...
Quantum geometry of common semiconductors
The quantum metric of the valence band states in typical diamond-type (C, Si, Ge) and zinc blende-type (GaAs, InP, etc.) semiconductors is investigated by means of the sp3s∗ tight-binding model. The g...
Unveiling the interface effects of plasma-activated micro-nano bubbles water: An emerging avenue for cancer therapy
Plasma-activated water (PAW) is widely recognized as a promising anticancer agent owing to its abundance of reactive oxygen and nitrogen species (RONS), which selectively target cancer cells. However,...
Large room-temperature anomalous Nernst effect in a metallic square-net ferromagnet SmMn2Ge2 single crystal
In a ferromagnet, heat current can generate a transverse electric voltage orthogonal to its magnetization, known as the anomalous Nernst effect (ANE). It shows technical advantages over the convention...
Storage of thermal energy using a piezochromic property of TADF materials
Thermally activated delayed fluorescence (TADF) requires a thermally activated step followed by light emission, which can be considered thermal energy harvesting and conversion to usable energy. Howev...
Wafer-scale growth of highly textured TiTe2/Ge2Sb2Te5 heterostructure thin films
Phase-change materials (PCMs) are leading candidates for memory and neuromorphic computing applications. By alternately growing PCM and confinement nanolayers, phase-change heterostructures (PCHs), in...
Wafer-scale epitaxial growth of AlN (0001) on heteroepitaxial diamond (111)
Wurtzite-type aluminum nitride (AlN) films were deposited by magnetron sputtering epitaxy (MSE) on wafer-scale diamond layers, which in turn were grown heteroepitaxially by plasma-enhanced chemical va...
Mechanistic insight and demonstration of antiferroelectric-gated enhancement-mode GaN HEMTs
This work presents mechanistic insight into polarization-assisted charge trapping in GaN HEMTs and demonstrates an enhancement-mode (e-mode) device employing an antiferroelectric (AFE) Hf0.2Zr0.8O2 ga...
High-mobility nitrogen-polar GaN/AlGaN heterostructures via impurity modulation
GaN high-electron mobility transistors (HEMTs) based on nitrogen-polar (N-polar) nitride films are promising for high-frequency millimeter-wave applications. However, realizing high-mobility N-polar G...
Design of magnonic waveguides using surface anisotropy-induced Bragg mirrors
Waveguides are fundamental components for signal transmission in integrated wave-based processing systems. In this paper, we address the challenges in designing magnonic waveguides, including limitati...
Experimental and computational study of the high-temperature 2DEG mobility in AlGaN/GaN heterostructures
AlGaN/GaN heterostructures are widely used in high power RF applications due to the high two-dimensional electron gas (2DEG) mobility. The wide bandgap of GaN makes it attractive for high-temperature...
Topological and chiral phonons in two-dimensional transitional metal monocarbide monolayers
Since the work of Zhao et al. in 2014, two-dimensional (2D) transition-metal monocarbides (TMMCs) have emerged as atomically thin materials. With unique metal–carbon bonding properties, 2D TMMCs exhib...
Dual-channel 2DEG micro-Hall effect sensor for extreme environments
We report a dual-channel two-dimensional electron gas (2DEG) micro-Hall sensor of AlN/GaN/AlN/GaN heterostructure for extreme environments. The fabricated Hall sensor shows a supply voltage-related se...
Compositional and thickness dependence of ferroelectric Zn(Ce,Mn)O epitaxial thin films
In this study, we investigated the composition and thickness dependence of ferroelectricity in c-axis-oriented Zn1−x(Ce,Mn)xO (Zn(Ce,Mn)O) epitaxial thin films co-doped with Ce and Mn in an approximat...
Surface termination of <b> <i>β</i> </b> -Ga2O3(100) as-cleaved single crystals
The surface of β-Ga2O3 single crystals cleaved along their (100) plane is investigated using surface x-ray diffraction and atomic force microscopy. The results show the surface to consist of a single,...
Ligand stripping-induced asymmetric charge transport suppression for enhanced performance of blue quantum dot light-emitting diodes
Surface ligand engineering plays a key role in optimizing the performance of colloidal quantum dot light-emitting diodes (QD-LEDs). While conventional ligand engineering strategies rely on ligand exch...
Effect of Ni–Sn electrode on insulation resistance degradation in BaTiO3-based multi-layer ceramic capacitors
As the BaTiO3 dielectric layer of multi-layer ceramic capacitors becomes thinner, the problem of leakage current degradation arises. In this study, the relationship between the Sn content in Ni–Sn int...