Applied Physics Letters
Articles in this Issue
Hot carrier dynamics in III–V semiconductor nanowires under dominant radiative and Auger recombination
One-dimensional structures such as nanowires (NWs) show great promise in tailoring the rates of hot carrier thermalization in semiconductors with important implications for the design of efficient hot...
Valley-contrasting physics, topological bands, and Dirac cone in the charge density wave phase of a 1<i>T</i>-MoS2 monolayer
Charge density waves (CDWs), valley-contrasting physics, and topological bands have been observed in 1T, 1H, and 1T′ transition metal dichalcogenides (TMDs), respectively, but rarely observed together...
Electron thermometry for Si MOS inversion layer using proximity nano-transistor and its application to Joule-heating experiment
A method for measuring the electron temperature in the inversion layer of Si metal-oxide-semiconductor structures is presented. This technique utilizes a nano-transistor as a thermometer, placed in cl...
Phase-change metasurfaces for reconfigurable image processing
Optical metasurfaces have enabled high-speed, low-power image processing within a compact footprint. However, reconfigurable imaging in such flat devices remains a critical challenge for fully harness...
Future roles of solid-state quantum dot light sources
This paper highlights the critical role of solid-state quantum dot (QD) light sources in both classical and quantum applications, with an emphasis on their integration with silicon photonics to advanc...
Thermodynamic coupling in micro-nanocavity graphene/paraffin phase change energy storage materials under impact loading
Micro-nanocavity graphene/paraffin nanocomposites (MNGPNs) are emerging as promising phase change materials for passive thermal management in electronics, utilizing the superior thermal conductivity o...
Impact of growth temperature on heterostructure interface steepness in ultraviolet-B AlGaN-based laser diodes
This study investigates the steepness of the heterostructure interface between the p-side optical-waveguide and electron blocking layer (EBL) in ultraviolet-B (UV-B) laser diodes (LDs), focusing on th...
Nonlinear response of hybrid magnons in synthetic antiferromagnets
In this study, we investigated the nonlinear response of hybrid magnons consisting of acoustic and optic magnon modes in in-plane magnetized synthetic antiferromagnets. Using the heterodyne magneto-op...
Enhanced AlGaN/GaN ultraviolet phototransistor: Achieving single-pixel imaging and communication
The ideal combination of high sensitivity and fast response speed is crucial for advanced photodetectors. Herein, we present a normally-off, visible-blind ultraviolet (UV) AlGaN/GaN phototransistor fe...
High temperature complementary heterojunction tunnel field-effect transistors for low-power circuits
Tunnel field-effect transistor (TFET) is emerging as a promising alternative to overcome the thermionic limit of 60 mV/dec in subthreshold swing (SS) inherent to metal-oxide-semiconductor field-effect...
Piezo-strain induced nonvolatile control of magnetic skyrmion nonlinear dynamics for artificial synapse device applications
High-performance artificial synaptic devices that emulate the functions of biological synapses are crucial for advancing energy-efficient brain-inspired computing systems. Current studies predominantl...
On the dependence of internal stress on dislocation inclination pattern in HVPE-GaN substrates
Internal stress in gallium nitride (GaN) induced during epitaxy growth can degrade the performance of GaN devices. This work studied the internal stress distribution and dislocation configuration arou...
Phase transition induced inherent superhydrophobicity on Al alloys surface via femtosecond laser multi-scanning process
Fabrication of biomimetic superhydrophobic metals has attracted considerable interest because of their exceptional surface wettability. Conventional methods for achieving this property often rely on a...
Plasmonic properties of gold nanoparticle arrays fabricated using a sequential dewetting process
A scalable, cost-effective technique to fabricate ordered gold nanoparticle arrays with fine control over nanoparticle size and interparticle distance is presented. The array is grown in the pores of...
Boosting low-pressure reversible barocaloric effect in plastic crystal KPF6 through controlled particle size
Plastic crystals have large entropy change during first-order phase transitions due to strong molecular orientation disorder and volume changes. This feature has revived interest in plastic crystals,...
Active rheology of soft solids performed with acoustical tweezers
Single-beam acoustical tweezers are used to manipulate individual microbubbles and provide quantitative measurements of the local shear modulus of soft hydrogels. The microbubbles are directly generat...
Cyclically symmetric radially self-similar phononic pseudocrystal isolator for broadband, ultrasonic vibration bandstop filtering
A 2D phononic pseudocrystal isolator exhibiting cyclic symmetry and radial self-similarity is measured and demonstrated to block a wide range of ultrasonic vibration. Measurements of longitudinal and...
Circularly polarized cavity mode emission from quantum dots in a semiconductor three-dimensional chiral photonic crystal
We experimentally demonstrated a circularly polarized cavity mode in a GaAs-based chiral photonic crystal (PhC) containing a planar defect. Low-temperature photoluminescence measurements of InAs quant...
Polarization selectivity in single-mode photonic molecule lasers
An efficient approach to achieve single-polarization selectivity in single-mode double microring lasers (photonic molecule lasers) is presented in this study. The fabricated microring lasers achieved...
A multi-degree-of-freedom model-based method for Young's modulus determination of soft tissue by resonance spectroscopy
Elastic properties of soft tissues are important indicators for disease progression. Previous studies have utilized mechanical resonance spectroscopy to infer elastic properties of soft tissues by ext...
Polymer-integrated optical fiber Fabry–Pérot interferometer with Vernier effect for the detection of myoglobin
Acute myocardial infarction (AMI) is the most severe manifestation of coronary artery disease and one of the leading causes of morbidity and mortality worldwide. The concentration of myoglobin (Mb) in...
Preparation and simulation of high-frequency lead-free NBBT/epoxy 1–3 piezoelectric composites with high electromechanical coupling characteristics
In this article, we design and fabricate (1 − x)Na0.5Bi0.5TiO3-xBaTiO3 single-crystal/epoxy 1–3 piezoelectric composites (NBBT 1–3 composites) with high coefficients of electromechanical coupling and...
Gradient-based optimization of spintronic devices
The optimization of physical parameters serves various purposes in device development, including in system identification and efficiency. Spin-torque oscillators have been experimentally and theoretic...
Strain-induced Kramers–Weyl phase in III–V zinc blende systems
We present theoretical observations on the topological nature of strained III–V semiconductors. By k·p perturbation, it can be shown that the strain-engineered conduction band hosts a Kramers–Weyl nod...
A highly integrated three-axis vector diamond quantum magnetometer with a compact electrical package
Diamond nitrogen-vacancy (NV) center has been widely studied as a high-sensitivity solid-state quantum sensor with a wide range of applications, including magnetometry, thermometry manometry, and chem...