Applied Physics Letters
Articles in this Issue
Submicron ultraviolet single-mode microlaser enabled by electrical pumping
Electrically pumped single-mode micrometer/submicrometer lasers, are promising for optical interconnects, data communications, biosensing, optical 3D facial recognition, and other fields. Generally, r...
Magnetic phase transition driven by nitrogen doping in Fe3Ga thin films
Magnetic phase transition holds considerable scientific and technological value in the field of spintronics, as it plays a crucial role in the manipulation and control of spin degrees of freedom. In t...
High-performance polymer supercapacitors
Supercapacitors (SCs) are emerging as critical components in the evolution of modern electronics, particularly as devices become more flexible, portable, and highly integrated, owing to their excellen...
Strain engineering for magnetoelectric coupling in flexible composite devices
This study explores strain-dependent regulation of magnetoelectric (ME) properties in flexible composite films. A flexible ME device with cylindrical assemblies of SmFe2 nanoclusters embedded in Bi5Ti...
Strain engineering of vertical (110) InGaAs/InP quantum wells laterally grown on (001) SOI
Selective lateral heteroepitaxy provides a cost-effective and high-density option for monolithically integrating III–V lasers on Si-photonics. Compared with planar (001) quantum wells (QWs) using conv...
1.5 kV <b> <i>β</i> </b>-Ga2O3 vertical Schottky diodes with 58 A surge current and off-state stressing study
This study advances the development of vertical, large-area (3 × 3 mm2) β-Ga2O3 Schottky barrier diodes (SBDs) by incorporating double field plates and N ion implantation-based edge terminations (ETs)...
Low-damage dry etching process of Sc-Sb-Te phase-change memory film using a chlorine-based reactive atmosphere
Scandium antimony telluride (Sc-Sb-Te), a promising nonvolatile cache-type phase-change memory (PCM) material, exhibits remarkable characteristics such as ultrafast crystallization speed, commendable...
Room-temperature solution-phase graphoepitaxial growth of in-plane nanowire arrays on flexible films for bendable synaptic devices
Recent advancements in artificial intelligence have spurred growing interest in developing innovative architectures for artificial synapses. Among these, nanowires have emerged as promising candidates...
Photothermoelectric effect in cadmium arsenide thin films for unbiased, mid-infrared photodetection
Mid-infrared photodetectors that can operate at room temperature are of great interest for a wide range of applications. Here, we demonstrate unbiased, mid-infrared (10.4 μm) photodetection in epitaxi...
Study of spin pumping damping and THz emission in CoFe/Ti<i>x</i>W1−<i>x</i> bilayers with various Ti concentrations
Laser-induced magnetization dynamics and terahertz (THz) emission in CoFe/TixW1−x bilayers with varying Ti concentrations are systematically investigated using the time-resolved magneto-optical Kerr e...
Numerical design considerations for vapor transport deposition of metal-halide perovskite thin films
While metal-halide perovskites (MHPs) offer high efficiency and potential application in single junction and tandem solar cells, challenges remain in translating solution-based methods to commercial-s...
Corneal viscoelasticity measurements under different intraocular pressures using handheld optical coherence elastography
Accurate measurement of corneal viscoelasticity is essential for diagnosing ocular diseases and understanding corneal biomechanics. Optical coherence elastography (OCE) is a promising technique for hi...
Single-shot ultrafast imaging based on round-view projection (RVP)
Current ultrafast imaging techniques necessitate single-shot continuous recording capabilities to capture non-repetitive ultrafast phenomena. Among various methods, projection-based ultrafast imaging...
Excellent low electric field energy storage properties in Bi5Mg0.5Ti3.45Zr0.05O15 films via ion pair engineering
The Bi5Mg0.5Ti3.5−xZrxO15 (BMTZxO, x = 0.00, 0.05, 0.10, 0.15) ergodic relaxor ferroelectric films were prepared using a combined sol–gel and plasma technique. The polarization intensity of the films...
Mott insulators appearing at a thickness period corresponding to nesting in CaRuO3
In 2021, we discovered a novel size effect with a period of 25 Å on strongly correlated compound CaRuO3. The change in film thickness of only one nanometer leads to an increase in electrical resistivi...
Interface quality improvement of metal/AlOxNy/AlGaN/GaN MIS-heterojunction by using alternative AlOxNy growth in PEALD system
Aluminum oxynitride (AlOxNy) films with nitrogen content ranging from 2.51% to 6.38% were employed as gate dielectrics in GaN-based metal–insulator–semiconductor (MIS) structures. These films were dep...
Determination of inelastic mean free path for solid polymer electrolytes: PTMC:LiBOB and PCL:LiBOB
X-ray photoelectron spectroscopy (PES) has been widely applied in the field of battery studies. However, the lack of knowledge regarding the inelastic mean free path (IMFP) for studied systems limits...
Power enhancement in two-dimensional resonant-tunneling-diode terahertz oscillator arrays with staggered arrangement
We design and fabricate a two-dimensional terahertz oscillator array based on resonant-tunneling diodes. The two-dimensional array utilizes high-efficiency slot resonators as array elements, enabling...
Sub-micron aperture VCSEL demonstrates ultralow ITH<b> = </b>0.05 mA and energy/bit<b> = </b>45.5 fJ/bit at 3 Kelvin
The 0.9 μm diameter oxide aperture vertical-cavity surface-emitting lasers (VCSELs) are developed for high-speed cryogenic operation. Ultralow threshold current of 0.05 mA was measured at 3 K by optim...
Out-of-plane polarization engineering: Optimizing exciton dissociation and solar-to-hydrogen efficiency in photocatalytic water splitting
Photocatalytic water splitting is a promising route for clean energy production, yet remains constrained by poor carrier utilization and low solar-to-hydrogen (STH) efficiency. Here, we demonstrate th...
Optimizing heat dissipation in permalloy wire-tube nanostructures: A pathway to improved hyperthermia treatments
This work investigates the heating efficiency of permalloy wire-tube nanostructures through micromagnetic simulations. We demonstrate that specific geometrical configurations of these nanostructures e...
Comparative Raman study of graphene on BaTiO3 (001) and (111) single crystals: Temperature-driven evolution of ferroelectric domains
We investigate how the ferroelectric domains of two single-crystal BaTiO3 (BTO) substrates, oriented along [001] and [111], influence the Raman response of monolayer graphene at varying temperatures....