Applied Physics Letters
Articles in this Issue
Improving thermal boundary conductance for wafer-scale buffer-free GaN-on-SiC via ion-cutting and controllable annealing
Thermal management remains a critical challenge for high-power gallium nitride (GaN) devices, particularly under extreme power densities, primarily due to the low thermal boundary conductance (TBC) li...
Thermodynamic-kinetic competitive growth and interface physics of β-Ga2O3 thin films on fused quartz for deep ultraviolet detection
We report the growth of highly (400)-oriented β-Ga2O3 thin films on amorphous fused quartz at 600 °C via high-power impulse magnetron sputtering. To elucidate the non-epitaxial crystallization mechani...
Magnesium-composition engineering of <i>p</i> -type Ni1−xMgxO thin films for enhanced self-powered <b> <i>β</i> </b> -Ga2O3 photodetection
Mg-composition-tuned p-type Ni1−xMgxO thin films were developed by radio frequency co-sputtering for solar-blind β-Ga2O3 heterojunction photodetectors. Mg incorporation significantly modifies the stru...
A comparative study of optical confinement and strain in GaN microdisk lasers with semi-suspended and DBR-based structures
In this study, GaN-based microdisk lasers with two different underlying structures, namely, a bottom distributed Bragg reflector (DBR) based structure and a semi-suspended structure formed through par...
Field-free exchange-spring spin-Hall nano-oscillator
Spin–orbit-torque-driven spin-Hall nano-oscillators (SHNOs) are promising spintronic microwave emitters and magnon sources, offering gigahertz frequencies, high-quality factors, and nanoscale scalabil...
Effect of grain size on phase transitions and dielectric properties in AgNbO3 ceramics
In ferroelectric ceramics, the grain size can influence both structure and properties. In this work, three AgNbO3 ceramics, with average grain sizes ranging from 230 nm to 2.7 μm, were fabricated. Rie...
Impact of high-temperature Ohmic contact annealing process on AlN Schottky barrier diodes
High-temperature Ohmic contact annealing is universally required in aluminum nitride (AlN) power device fabrication, yet its impact on adjacent AlN surfaces subsequently used for Schottky contact form...
Broad-spectrum tunable and low switching voltage memristor based on CsBi3I10 for artificial optoelectronic synapses
Artificial optoelectronic synapses exhibiting both electrically and light-triggered synaptic behaviors have garnered much attention in recent years for applications in neuromorphic computing and artif...
Reflective lensless through-silicon phase imaging for advanced semiconductor packaging metrology
Achieving high-yield heterogeneous integration in silicon photonics and advanced microelectronics requires compact, high-contrast metrology to inspect buried interfaces during die-to-wafer and stacked...
Identical optical stimulus-enabled multi-level conductance under zero field in ferroelectric optoelectronic field-effect transistor for neuromorphic computing
Neuromorphic computing, particularly bio-inspired visual neural simulation, demands devices with simplicity, multi-level tunability, and high stability. Here, we demonstrate a ferroelectric optoelectr...
Accurate modeling of disorder in lattice thermal conductivity of NbFeSb1− <i>x</i> Bi <i>x</i> half-Heusler alloys: Site-specific substitution vs virtual crystal approximation
Accurately incorporating the disorder in lattice thermal conductivity calculations has been a very challenging problem. This work provides a combined methodological and analytical framework to evaluat...
Reducing nonlinear effects in Kelvin probe force microscopy of back-gated 2D semiconductors
In 2D field effect transistors, the gate electrostatically dopes the 2D semiconductor (2DSC) channel, tuning the Fermi level. In principle, Kelvin probe force microscopy (KPFM) can detect the Fermi le...
Programming heterophase structure in two-dimensional palladium telluride by reaction diffusion
Two-dimensional heterophase structures integrate distinct crystalline phases to enable novel electronic and quantum functionalities through atomic-scale interfaces, yet their controlled synthesis rema...
Nondestructive structural evaluation of high-aspect-ratio-etched holes by tender x-ray ptychography with computed tomography
Nondestructive evaluation of high-aspect-ratio (HAR) structures in advanced memory devices is essential yet remains challenging at the nanoscale. In this study, we demonstrate tender x-ray ptychograph...
Erratum: “Precise control of launch velocity vector for cold atomic cloud based on moving optical molasses” [Appl. Phys. Lett. <b>128</b> , 211104 (2026)]
Ternary heterojunction nanobelts enable synergistic adsorption and catalytic conversion of polysulfide toward high-performance Li–S batteries
Lithium–sulfur (Li–S) batteries have attracted extensive attention owing to their exceptionally high theoretical energy density. However, the shuttle effect and sluggish conversion kinetics of lithium...
Non-monotonic superconducting transition in YBCO thin films under laser irradiation
Laser-induced nonequilibrium dynamics in high-temperature superconductors offer a nondestructive approach to perturb the electronic, spin, and lattice degrees of freedom and are essential for the deve...
Diamond thermometry beyond the zero-phonon line via physics-aware spectral trend learning
Nitrogen-vacancy centers in diamond enable microwave-free optical thermometry, but conventional zero-phonon-line readout becomes unreliable at elevated temperature and low signal-to-noise ratios becau...
Second-harmonic generation of integer and fractional perfect vortex beams in laser-written lithium niobate nonlinear photonic crystals
We propose and experimentally demonstrate the generation of second-harmonic (SH) perfect vortex beams (PVBs) in a χ(2)-amplitude-modulated lithium niobate (LN) nonlinear photonic crystal. The χ(2) str...
Strain-dependent electromagnetic absorption in shear-deformed MoS2 thin films
The mechanical/electrical properties of 2D materials are governed by structural deformation, which enables greater strain tolerance than bulk solids and allows property tuning via shear forces. Howeve...
Enhanced SAW magnetic sensing via acoustic energy confinement of high-order harmonics
Surface acoustic wave (SAW) magnetic sensors offer an attractive platform for weak magnetic field detection, benefiting from compact form factor and wireless operation. However, intrinsic acoustic ene...
Hybrid improper ferroelectricity and complex phase evolution in Eu2SrSc2O7 ceramics
Hybrid improper ferroelectricity (HIF) in double-layered Ruddlesden–Popper oxides has been widely studied in recent years. In the present work, the complex phase transition sequence in Eu2SrSc2O7 cera...
High-sensitivity and high-resolution collaborative determination of birefringence coefficient using weak measurement
Precise nanofilm birefringence characterization is essential for high-sensitivity polarization response and strong anti-interference detection in photodetectors. We present a high-sensitivity and high...
Erratum: “Thickness-dependent optical and structural properties of chalcogenide phase-change memory thin films grown at room temperature by pulsed laser deposition” [Appl. Phys. Lett. <b>127</b> , 201603 (2025)]
Long-range modulation of skyrmion population by local current injection
The thin-film magnetic skyrmion is designed to interact with each other as nonlinear response, enabling collective magnetic morphology at the nonequilibrium state. We here explore the alternative nonl...