Applied Physics Letters
Articles in this Issue
Surface treatments affect GaN surface quantum well emission
Surface quantum wells (SuQWs), comprised of a thin layer of lower bandgap semiconductor sandwiched between a vacuum or air interface and a higher bandgap semiconductor, are sensitive to surface adsorb...
On-board calibrated radio-frequency measurement at cryogenic temperatures for determination of SrTiO3-based capacitor properties
Quantum computing has emerged as a promising technology for next-generation information processing, utilizing semiconductor quantum dots as one of the candidates for quantum bits. Radio-frequency (rf)...
Electric field tunable magnetic phase transition and magneto-optical effects in two-dimensional multiferroic Ti2F3 semiconductor
Two-dimensional single-phase magnetoelectric multiferroic semiconductors are attractive for the multifunctional spintronic nanodevices due to their cross coupling between coexisting magnetic and ferro...
Ultrahigh TER ratios and nonvolatile behavior in dual-polarized GaAs/In2Se3 heterostructures: A first-principles study
Ferroelectric tunnel junctions (FTJs) have great potential for high-density nonvolatile memory applications. Achieving high performance of FTJs in low-dimensional materials is still challenging. Here,...
On the ambient conditions crystal structure of AgSbTe2
We present a combined x-ray and neutron diffraction, Raman spectroscopy, and 121Sb nuclear magnetic resonance (NMR) experimental study of AgSbTe2, supported by first-principles calculations aiming to...
Thermoelectric fingerprinting of Bloch- and Néel-type skyrmions
Magnetic skyrmions are nanoscale spin textures that exhibit topological stability, which, along with their thermal and electrical transport properties, make them the ideal candidates for a variety of...
Tunable electronic interactions and weak antilocalization in bulk Ge2Sb2Te5−5<i>x</i>Se5<i>x</i> phase change materials
Phase change materials (PCMs) are well-known for their reversible and rapid switching between crystalline and amorphous phases through thermal excitations mediated by strong electrical or laser pulses...
Tuning the interfacial properties of stacked gate dielectrics on silicon carbide by inserting h-BN layer
Silicon carbide (SiC) has significant potential for applications in high-voltage, high-temperature, and high-power devices, such as fast charging systems, grid-connected power systems, and switching p...
Calcium doping-induced metal–insulator transition in SrTiO3-based two-dimensional electron gas
Among oxygen-deficient ABO3 perovskite titanates, SrTiO3 (STO) surfaces and interfaces exhibit a high-mobility two-dimensional electron gas (2DEG), generating significant research interest. To underst...
Magnon up-conversion mediated by nonlinear harmonic generation in synthetic antiferromagnets
The conversion of magnons between distinct modes enables advanced nonlinear manipulation of these quasiparticles. Synthetic antiferromagnets (SAFs) with their inherently coupled magnon modes provide a...
Separation of microspheres using a potential ratchet in dusty plasma
The potential ratchet provides significant flexibility for controlling the transport of charged particles in a desired direction and has been effectively used for particle separation based on size. He...
Quantifying trapped magnetic vortex losses in niobium resonators at mK temperatures
Trapped magnetic vortices in niobium introduce microwave losses that degrade the performance of superconducting resonators. While such losses have been extensively studied above 1 K, we report here th...
Dephasing-assisted diffusive dynamics in superconducting quantum circuits
Random fluctuations caused by environmental noise can lead to decoherence in quantum systems. Exploring and controlling such dissipative processes is both fundamentally intriguing and essential for ha...
Raman studies of lattice–charge–spin coupling in double perovskite SmBaMn2O6
The complex phase transitions of SmBaMn2O6 single crystals are investigated using temperature-dependent Raman spectroscopy. Distinct anomalies associated with the charge-orbital ordering are observed...
Effective magnetic modulation of monolayer 1T-CrSe2 under small strain: Magnetic ground state and magnetic anisotropy
Strain engineering offers an effective approach to modulating the magnetic properties of two-dimensional materials. In this paper, we investigate the behaviors of the magnetic ground state and magneti...
Phase engineering of monodispersed ternary Co/Mo2C/Co3Mo3N heterojunctions for efficient alkaline HER electrocatalysis
Intermetallic compounds (IMCs) are promising alternatives to Pt-based catalysts for hydrogen evolution reaction (HER). However, their applications are hindered by agglomeration and limited activity. H...
Monolithic integration of GaN synapse and photodetector for bio-inspired adaptive vision
This work addresses critical limitations in conventional artificial vision systems, namely the von Neumann architecture bottleneck and inadequate environmental adaptability, by proposing a bionic visi...
Compact wide-band tunable narrow-linewidth laser based on BOA-driven PT-symmetry
In semiconductor gain-enhanced long cavities, conventional mode-selection techniques face significant challenges in achieving single-longitudinal-mode operation. In contrast, parity-time (PT) symmetry...
Quantitative photoacoustic tomography of blood oxygenation enhanced by Monte Carlo modeling
We present a Monte Carlo-enhanced photoacoustic tomography (MC-PAT) system for quantitative three-dimensional mapping of tissue optical properties and blood oxygenation. Combining Monte Carlo light tr...
Transport evidence of topological surface states in PbBi6Te10
We present the experimental realization of Dirac fermions with a π-Berry phase in PbBi6Te10, a 3D topological insulator, as observed through Shubnikov–de Haas (SdH) oscillations in electronic transpor...
Longitudinal position dependence of dark line defect growth rate in high-power diode lasers at 790 nm
Using a nondestructive, in situ near-infrared defect imaging technique, we obtained time-resolved images of dark line defect (DLD) growth in the cavities of several high-power 790-nm diode lasers and...
Enhanced THz emission from spintronic emitters with Pt-Al alloys
Platinum (Pt) is the element with the largest spin Hall conductivity and is known as the most efficient spin-to-charge conversion material in spintronic THz emitters. By alloying with aluminum (Al), i...
Plasma-enhanced atomic layer deposition of elemental niobium thin films
We report atomic layer deposition (ALD) of superconducting elemental niobium films, where we have been able to improve the critical superconducting temperatures (Tc) of the films by optimization of de...
Edge-coupled digital alloy AlInAsSb SPAD with high avalanche breakdown probability
Waveguide-coupled single-photon avalanche detectors (SPADs) with near-unity detection efficiencies at 1550 nm operating at moderate temperatures are a crucial component for numerous quantum optics app...
Extended wavelength photodiodes in the B-III–V material system
Highly mismatched B-III–V alloys present a promising avenue for near-infrared (NIR), direct bandgap optoelectronics that can be integrated on GaAs or Si, owing to their ability to vary bandgap and lat...