Applied Physics Letters
Articles in this Issue
Activation imaging of gold nanoparticles for versatile drug visualization: An <i>in vivo</i> demonstration
Gold nanoparticles (AuNPs) have recently attracted considerable attention as promising drug carriers. In vivo imaging of AuNPs is required to investigate their pharmacokinetics. However, a direct and...
A significant enhancement in thermal conductivity of plastic crystals under compressive strain by deep potential molecular dynamics
The unique properties of plastic crystals highlight their potential for use in solid-state refrigeration. However, their practical applications are limited by thermal hysteresis due to low thermal con...
Visible light-driven synaptic transistors based on bilayer InGaZnO homojunction for neuromorphic computing
The development of photoelectric synaptic transistors (PSTs) using visible light-driven mimicking synaptic behaviors represents a key advancement toward biomimetic visual systems. This study proposes...
A perspective on diamond MEMS magnetic sensors
Microelectromechanical system (MEMS) technology has unlocked a wide range of applications in electronics, mobility-type devices, and medical and energy generation devices from sensors and actuators to...
Thermal budget study to simultaneously achieve low-temperature (<b>&lt;</b>400 <b>°</b>C) process and high endurance of ferroelectric Hf0.5Zr0.5O2 thin films
This work comprehensively investigates the thermal budget required to simultaneously achieve low-temperature process conditions and high endurance in atomic layer deposited ferroelectric Hf0.5Zr0.5O2...
Charge balance effect on the phase stability and reliability in doped HfO2-ZrO2 superlattice films for further DRAM capacitors: A first-principles study
A dielectric material with a higher permittivity and a lower leakage is required to meet the demands of three-dimensional (3D) dynamic random access memory (DRAM). Current morphotropic phase boundary...
Enhancing excited-state population of perylenequinone photosensitizer with asymmetric laser pulses
Perylenequinones are important photosensitizers commonly used in photodynamic therapy (PDT) due to their efficient photoreactivity and photostability, which originate from excited state intramolecular...
Ultrafast interfacial charge transfer regulation in organo-metal perovskites through bandgap engineering
Selecting suitable materials for electron transport layers and optimizing their electronic properties are crucial for enhancing the performance of organic light-emitting diode. However, the harsh depo...
Temperature effect of the pressure coefficients for multi-phonon coupling in B3-ZnS
The zincblende (B3) to rock salt (B1) in ZnS is a typical pressure-induced phase transition. Meanwhile, B3-ZnS exhibits distinctive multi-phonon coupling behavior. Despite previous studies have explor...
Optimal focusing for single-color laser filamentation to generate terahertz radiation
We study the influence of the laser beam numerical aperture on the energy of different spectral components of terahertz emission from single-color filament plasma. The parameters of the plasma channel...
Low energy backgrounds and excess noise in a two-channel low-threshold calorimeter
We describe observations of low energy excess (LEE) events, background events observed in all light dark matter direct detection calorimeters, and noise in a transition edge sensor based two-channel s...
Reconfigurable asymmetrical broadband mid-infrared light filter design by materials informatics
A reconfigurable asymmetrical broadband mid-infrared light filter utilizing a vanadium dioxide (VO2) triangular grating structure is designed by materials informatics. The design applies the unique ph...
Realizing freestanding single-crystal oriented membranes of ultrawide-bandgap semiconductor ε-Ga2O3 and their prospects in optoelectronic device applications
As an ultrawide bandgap semiconducting material, Ga2O3 has attracted significant attention in providing a foundation for applications in optoelectronic and power devices. The structural incompatibilit...
Coexistence of unconventional spin Hall effect and antisymmetric planar Hall effect in IrO2
Crystal symmetry plays an important role in the Hall effects. Unconventional spin Hall effect (USHE), characterized by Dresselhaus and out-of-plane spins, has been observed in materials with low cryst...
Layer transferred UV emitting hBN/AlGaN heterostructures
p-hBN/n-AlGaN heterojunctions were fabricated using a dry-selective lift-off/transfer of Mg-doped hexagonal boron nitride (hBN) layer on top of n-AlGaN. Electrical contacts were used as mechanical str...
Temporal pulse shaping technique for nonlinear frequency shifting
We present a spectral phase-only shaping technique allowing to generate arbitrary temporal shapes and demonstrate its use for ultrafast ytterbium-based laser sources. This technique is based on the in...
Synergistic Ti3C2 MXene/MoS2 heterostructure: Unlocking ultra-fast, durable, and high-efficiency energy storage for next-generation supercapacitors
Developing advanced electrode materials with high energy storage capacity, excellent cycling stability, and rapid charge–discharge capabilities is pivotal for next-generation supercapacitors. In this...
Precision determination of an excited-state hyperfine splitting of cadmium ions
Precision determination of the hyperfine splitting (HFS) of cadmium ions is useful to study space-time variation of fundamental physical constants and isotope shifts. In this work, we present the prec...
Polarization dynamics of the ferroelectric hafnium zirconium oxide thin-film capacitor during the relaxation process
We simulated the polarization dynamics of a ferroelectric hafnium zirconium oxide thin-film capacitor during the relaxation process. The simulation results exhibited good agreement with the observed v...
Observation of interface dipole modulation in an Al2O3/SnOx/SiO2 stack
Interface dipole modulation (IDM) has predominantly used TiO2 as the IDM layer, and changes in the valence state of TiO2 critically affect device operation. This study demonstrates the use of SnOx ins...
Nonlinear geometric phase in optics: Fundamentals and applications
Pancharatnam–Berry phase, the manifestation of geometric phase in optics, which originates from the adiabatic evolution of light in the anisotropic medium, has been widely explored in the past decades...
Formic acid-engineered PEDOT:PSS for enhanced crystallinity and performance in tin–lead perovskite solar cells
Organic–inorganic hybrid perovskite solar cells (PSCs) have shown tremendous promise due to their excellent optoelectronic properties and cost-efficient fabrication. However, the efficiency of traditi...
710 GHz GaN gradient doped Schottky barrier diode with high breakdown voltage
In this work, a 710 GHz GaN Schottky barrier diode (SBD) with high breakdown voltage was proposed and fabricated. The high-frequency SBDs suffer from the trade-off between the frequency (fc) and break...
Dzyaloshinskii–Moriya interaction and current-induced magnetization switching in ferrimagnetic [Co/Gd]<i>N</i> multilayers
The Dzyaloshinskii–Moriya interactions (DMI) naturally breaking spatial inversion symmetry are considered a key factor in realizing current-induced magnetization switching by spin–orbit torque (SOT) w...
Periodic lateral superlattice in bonded SrTiO3/SrTiO3 twisted perovskites
Stacking of freestanding membranes enables the formation of interfaces beyond what can be obtained with classical heteroepitaxy. In particular, twisted interfaces provide unique physical properties no...