Applied Physics Letters
Articles in this Issue
Passive metasurface gyrators combining chiral and gyromagnetic effects
Gyrators are essential for designing and optimizing high-frequency microwave systems. In this study, we experimentally demonstrate a passive metasurface gyrator that integrates chiral and gyromagnetic...
Ferroelectric transistor with tunable depolarization for artificial synapse with biphasic temporal response
Artificial synapses with tunable temporal dynamics are the basic building blocks of brain-inspired information processing. In this Letter, we report a dual-gated ferroelectric transistor (FeFET) with...
Efficient and stable CsPbBr3 perovskite quantum dots by dodecyl dimethyl betaine ligand toward light-emitting diode
Lead halide perovskite quantum dots (PeQDs) have shown great potential for applications in light-emitting diodes (LEDs) due to their exceptional optoelectronic properties. However, the highly dynamic...
Evidence of electron–phonon coupling in type-II Weyl semimetal TaIrTe4
TaIrTe4, a time-reversal symmetric Weyl semimetal with the allowed minimum Weyl points, has sparked considerable attention and is appealing for a myriad of intriguing physical phenomena, including chi...
Defect passivated wide-bandgap perovskite films for high performance four-terminal perovskite/silicon tandem solar cells
Wide-bandgap (WBG) perovskite solar cells (PSCs) have garnered significant attention due to their potential to form high-quality, stable films, which can significantly enhance the efficiency of silico...
Polarization-sensitive short-wave infrared photodetector with high responsivity enabled by PdSe2/Bi2O2Se heterostructure
Short-wave infrared (SWIR) polarized detectors, renowned for their high-resolution imaging and atmospheric penetration capabilities, are pivotal for advancing autonomous navigation, industrial automat...
Formation and optical properties of indium nanoparticle arrays for deep-UV plasmonics
We utilize a combined computational-experimental approach to examine the influence of indium nanoparticle (NP) array distributions on deep-ultraviolet (UV) plasmon resonances. For photon energies &...
Ultrasensitive polarization-dependent ultraviolet detection enabled by electrical and optical anisotropies
The detection of multi-dimensional parameters such as polarization, light intensity, and wavelength represents a significant leap forward in the development of high-performance photodetectors. However...
Velocity and temperature dependent adhesion and friction in mesoscale graphite contacts
The weak interlayer binding in two-dimensional layered materials such as graphite has been the subject of intensive experimental investigation and modeling for structural superlubric and electronic de...
CoSe2 nanoparticles catalyzed the formation of Cu-BTC polyhedral nanoframes enabling biosensing of endogenous opioid peptides
We describe a point-of-care biosensing platform for the detection of endogenous opioids using an integrated assay. In this system, cobalt–selenium (Co-Se2) nanoparticles catalyze the formation of tuna...
Demonstration of high threshold voltage Tri-gate hybrid ferroelectric gate stack GaN HEMT with 1.2 GW/cm2 Baliga's figure-of-merit and highly robust TDDB stability
This work demonstrates a highly robust time-dependent dielectric breakdown (TDDB) lifetime analysis and high threshold voltage (Vth) in a tri-gate metal–insulator–semiconductor high-electron-mobility...
Widely tunable short-wave mid-infrared hybrid lasers enabled by a single ultra-compact silicon microring resonator
Chip-scale widely tunable laser sources operating in the short-wave mid-infrared range (2–2.5 μm) have garnered significant interest for applications such as spectroscopic sensing, industrial gas dete...
Temperature-dependent characterization of piezoelectric, dielectric, and elastic properties in K0.61Na0.39NbO3 single crystals
Accurate and self-consistent measurement of the dielectric, piezoelectric, and elastic parameters of potassium-sodium niobate (K1−xNaxNbO3, KNN) single crystals is essential for both theoretical studi...
Atomic layer deposition and characterization of scandium aluminum nitride
We report the growth of scandium aluminum nitride (ScAlN) thin films utilizing plasma-enhanced atomic layer deposition (PE-ALD). The scandium (Sc) content is controllably varied up to 25% by tuning th...
Velocity-field measurements in a GaN/AlN two-dimensional hole gas
We report measurements and an improved analysis methodology to characterize the velocity-field characteristics of a polarization-induced two-dimensional hole gas in a GaN/AlN heterostructure at both r...
Optofluidic rotation mode transitions control in hexagonal gold nanoprisms
While optical torque manipulation has been extensively studied in one-dimensional micro- and nano-scale particle systems, the dynamics of multi-dimensional torque coupling with opto-hydrodynamic inter...
Strain-induced topological transitions in epitaxial films of cadmium arsenide
Strain in epitaxial thin films can have a profound influence on their electronic bands. Here, we investigate the influence of epitaxial strains on the electronic states of (001)-oriented cadmium arsen...
Synergistic optimization effects of energy band and interface engineering on the thermoelectric properties of Bi0.46Sb1.54Te3
The strong coupling between the Seebeck coefficient, electrical resistivity, and thermal conductivity of thermoelectric materials makes it difficult to achieve high thermoelectric performance through...
Tunability of topological rainbow capture and waveguide in phononic crystals based on magnetorheological elastomers
In recent years, following the integration of topological insulators and the concept of rainbow trapping into acoustic/elastic wave systems, a highly unique form of edge state transport has been reali...
Low damping (111) oriented lithium aluminum ferrite thin films for spin wave applications
Spin wave-based spintronics are an alternative to conventional electronics due to their potential for efficient energy consumption, improved processing speed, and smaller device dimensions. Low dampin...
Ferroelectric polarization-driven ionic modulation enabling enhanced self-rectification in NiOx/HfO2−x: Al memristors
Self-rectifying memristors, which integrate diode-like behavior to suppress sneak currents in crossbar arrays, are promising for high-density neuromorphic systems. However, conventional designs often...
High-sensitivity x-ray detection of stacked A4 sheets using Ga2O3 Schottky barrier diodes: Toward low-dose imaging and material discrimination
This study investigates the performance of a β-Ga2O3-based x-ray detector in distinguishing the number of stacked A4 sheets under x-ray illumination. The detector is fabricated using an 11-μm thick Si...
Electrical stress-induced damage in TiN/Ti/HfO2/W memristors: The critical role of voltage polarity and vacuum condition
In this work, we investigate the damage caused by the catastrophic breakdown of the insulating layer in TiN/Ti/HfO2/W memristors when subjected to ramped voltage stress. Our analysis includes physical...
Stress-tunable spin-wave dynamics in superellipse-shaped FeGa nanostructures
Through micromagnetic simulations, we investigate the high-frequency dynamic properties of FeGa nanostructures with superellipse geometries, focusing on the dynamic susceptibility and the spatial prof...
Revealing the origin of promising photovoltaic performance in ternary chalcogenide NaBiS2 from first principles
Ternary chalcogenide NaBiS2 has emerged as a promising candidate for light absorbers of solar cells, but its optoelectronic properties are not yet fully understood. Here, we report a study of quasipar...