Applied Physics Letters
Articles in this Issue
Conductivity conversion of N-doped diamond by additional B ion implantation
We report the first successful formation of inversion doping in diamond achieved by ion implantation, realizing conductivity conversion from n-type to p-type. Type Ib diamond containing nitrogen donor...
Correlation between giant surface potential and enthalpy relaxation in vacuum-deposited organic films
It is well known that vacuum deposition of organic molecules possessing electric dipoles leads to spontaneous molecular orientation, resulting in the formation of a giant surface potential (GSP). The...
Elasticity assessment of intestinal tissues using endoscopic optical coherence elastography
Strain-based optical coherence elastography (OCE) is a functional imaging modality derived from optical coherence tomography (OCT), which evaluates biomechanical properties by measuring tissue strain....
Metal-modulated phonon transport in porphyrin-based MOFs
Metal centers in porphyrin-based frameworks induce distinct thermal transport behaviors, yet their atomistic origins remain unclear. Here, first-principles calculations combined with machine-learned i...
Evolution of boron nitride structures from hexagonal to cubic and wurtzite phases: A machine-learning potential approach
Boron nitride (BN) is one of the most structurally stable and widely used boron compounds. However, studies on the microscopic mechanism of three-dimensional BN synthesis have so far relied solely on...
Retention improvement in vertical NAND flash memory using block soft erase scheme
We propose a block soft erase method to enhance the retention characteristics of vertical NAND (V-NAND) flash memory while significantly reducing soft erase time. Unlike prior incremental-step-pulse-e...
Continuous topological charge manipulation with radially varying polarizations
Topological charge (m), a fundamental quantity characterizing optical orbital angular momentum (OAM), has been intensively studied primarily as a discrete integer. However, realizing topological charg...
Polyhydroxy organic molecule-cross-linked polyvinylidene fluoride with enhanced breakdown strength and energy density
Polyvinylidene fluoride (PVDF) has been extensively studied for dielectric energy storage applications owing to its excellent dielectric properties. There remains a persistent demand to enhance its br...
UV ozone oxidized high- <i>k</i> TaO <i>x</i> dielectric with van der Waals interface for two-dimensional electronic devices
Two-dimensional (2D) semiconductors are promising channel materials for next-generation field-effect transistors (FETs) due to their superior gate control capabilities, dangling-bond-free surfaces, an...
On-demand microwave single-photon source based on tantalum thin films
Single-photon sources are crucial for quantum information technologies. Here, we demonstrate a microwave single-photon source based on tantalum thin films, whose favorable material properties enable h...
Observation of anomalous exciton-polariton bands in (PEA)2PbI4 perovskite based microcavity at room temperature
Recently, anomalous energy bands with negative mass attract intensive attention where non-Hermiticity plays an important role. In this work, we observe anomalous exciton-polariton bands in (PEA)2PbI4...
Nanoscale crystallization of Cr2Ge2Te6 thin films induced by terahertz near-fields
Cr2Ge2Te6 (CrGT) is a promising phase-change material exhibiting low operating energy and a thermally stable amorphous phase, suitable for next-generation nonvolatile memory. To assess its nanoscale s...
Electron drift velocity measurement of AlGaN/GaN single- and multi-channel Fin structures
This paper presents a method for extracting electron drift velocity vs electric field characteristics in AlGaN/GaN Fin structures by combining Fin-Hall bar and Fin-Transmission Line Model measurements...
Chain length effect of large organic cations on the amplified spontaneous emission and lasing properties of quasi-2D Dion–Jacobson perovskites
Quasi-two-dimensional (quasi-2D) Dion–Jacobson (DJ) perovskites modified with large organic cations exhibit superior optoelectronic properties and stability compared to their three-dimensional (3D) co...
Atomic layer etching-enabled interface engineering for reduced subthreshold swing and improved uniformity in p-channel GaN MOSFETs
In this work, enhancement-mode p-MOSFETs on p-GaN/AlGaN/GaN-on-Si substrates were fabricated using a gate recess process that combines reactive ion etching (RIE) with atomic layer etching (ALE), where...
Carbon-doped quasi-bulk hexagonal boron nitride grown by HVPE
We report characterization of 4-in. diameter carbon-doped hexagonal boron nitride (h-BN:C) quasi-bulk crystals (100 μm in thickness) produced by hydride vapor-phase epitaxy. X-ray diffraction characte...
A green and general room-temperature synthesis of doped 0D perovskites for tunable and enhanced luminescence
Zero-dimensional (0D) double perovskite Cs2ZrCl6 has emerged as a promising lead-free phosphor due to its strong quantum confinement, excellent stability, and tunable luminescence. However, the conven...
Demonstration of high-fidelity gates in a strongly anharmonic with long-coherence C-shunt flux qubit
We demonstrate high-fidelity single-qubit gates on a C-shunt flux qubit that simultaneously combines a large anharmonicity (A/2π=848 MHz) with long relaxation time (T1=23 μs). The large anharmonicity...
Simulation study of low-field proton magnetic resonance spectroscopy using optically pumped magnetometers
We numerically investigated the feasibility of low-field magnetic resonance spectroscopy (MRS) using optically pumped magnetometers (OPMs). Low magnetic fields reduce signal strength and spectral reso...
On-chip FSR manipulation of optical frequency combs with a four-wave mixing time lens
Precise control of the free spectral range (FSR) in high-repetition-rate (e.g., 100 GHz) optical frequency combs is critical for advanced applications but remains technically challenging. The frequenc...
Flexoelectric-stabilized hierarchical polar bubbles in wrinkled ferroelectric CuInP2S6
The realization of complex, high-order topological textures in ferroelectrics typically relies on demanding epitaxial growth under substrate clamping. Here, we report hierarchical polar bubbles in the...
Spin-state regulation-enhanced piezoelectric-polarization-driven catalytic kinetics in 1T-dominant MoS2
1T-dominant MoS2, owing to its relatively high electrical conductivity, facilitates charge transport induced by piezoelectric polarization; however, the reaction kinetics are still constrained by rapi...
Hardware edge detection system based on a self-assembled vertically aligned ferroelectric memristor
Real-time image processing faces significant challenges in traditional von Neumann systems due to data transfer bottlenecks between the processor and memory. Neuromorphic computing offers a promising...
Ferroelectric switchable magnon valley and nonlinear Hall effect in type-I multiferroics
Electric control of magnetism at room temperature is crucial for developing next-generation high-performance spintronics. However, the intrinsic incompatibility between ferroelectricity and magnetism...
Digitally programmable kirigami metamaterials via magnetic encoding
The vast configuration space of magnetic metamaterials, enabled by embedding reversibly orientable magnets into rotating-square kirigami pixels, remains largely unexplored beyond uniform magnetization...