Applied Physics Letters
Articles in this Issue
A spontaneous Leidenfrost transitioning phenomenon
The boiling behavior of impacting droplets plays a critical role in spray cooling, directly governing the overall cooling efficiency. Among the various boiling regimes, transitional boiling is particu...
Incoherent phonon transport dominates the out-of-plane thermal conductivity of epitaxial van der Waals Bi2Se3/In2Se3 superlattices
The increase in thermal conductivity, κ, at small period lengths in covalently bonded semiconductor and oxide epitaxial superlattices (SLs) is a hallmark of coherent phonon transport and a route for i...
Electric field-modulated AlGaN/GaN Schottky barrier diode with high breakdown voltage via polarized charge around thin GaN channel
In this work, electric field-modulated AlGaN/GaN Schottky barrier diodes (SBDs) with an AlN back barrier layer and a thin GaN channel layer are demonstrated. Benefiting from the built-in electric fiel...
Characterization of leakage errors in a transmon qubit due to resonant digital control
We present experimental measurements and analysis of leakage errors occurring during resonant digital control of a superconducting qubit. By increasing the amplitude of the digital pulse trains and th...
Semi-suspended graphene terahertz photothermoelectric detector
Terahertz (THz) waves, with their unique physical properties, have potential applications in a number of industries. However, current THz detectors are not widely used due to their poor sensitivity an...
High-resolution self-referencing incoherent single-shot lensless imaging with direct image retrieval
Lensless imaging is a family of techniques that can produce images without the need for imaging optics. Conventional lensless imaging usually requires some combination of coherent illumination, a refe...
Cooperatively controlling unpleasant defects in kesterite solar cells by introducing La3+ ions induced Na diffusion
Hindering the unpleasant bulk defects is considered an effective measure to improve the photoelectric conversion efficiency (PCE) of Cu2ZnSn(S, Se)4 (CZTSSe) thin film solar cells. In this work, rare...
Te concentration-dependent carrier dynamics and electronic structure of ZnTe <i>x</i> Se1− <i>x</i> quantum dots
Heavy-metal-free ZnTexSe1−x quantum dots (QDs) have attracted significant attention due to their potential to substitute Cd,Pb-based QDs for tunable emission in luminescent or display applications. In...
Portable resonant acoustic rheometry system enables rapid and integrated acoustic-mechanical characterization of soft biomaterials
Resonant acoustic rheometry (RAR) is a contactless technique for measuring viscoelasticity of soft materials based on the resonant surface waves generated on a sample surface using a dual-mode ultraso...
Dual-functional 2D ferromagnetic material Fe2C12: Synergistic integration of hydrogen evolution reaction and hydrogen storage
Addressing the dual challenges of efficient hydrogen production and storage is critical for the realization of a hydrogen economy. This study employs density functional theory to investigate the dual-...
Modulating ion transport via a Cu-MOF@Zein nanofiber-tailored separator for ultrastable and dendrite-free sodium-metal batteries
Sodium metal, featuring low redox potential (−2.714 V vs SHE), high theoretical capacity (1166 mAh g−1), and natural feasibility, is recognized as the ideal anode for sodium-metal batteries (SMBs). Ne...
Resonant distance spectroscopic microwave impedance microscopy
Microwave impedance microscopy (MIM) is a powerful technique for mapping electronic properties at the nanoscale. The current state-of-the-art, dynamic mode MIM uses lock-in detection at the probe's me...
Trapping an atomic ion using time-division multiplexed digital-to-analog converters
Independent control of numerous electrodes in quantum charge-coupled device architectures presents a significant challenge for wiring and hardware scalability. To address this issue, we demonstrate a...
Temperature-dependent <i>N</i> -type negative differential resistance in planar LaNiO3/SmNiO3/LaNiO3 heterojunctions
Dimensional reduction represents a powerful approach for investigating emergent phenomena in strongly correlated oxide materials. Although vertical confinement effects have been extensively examined,...
Non-isomerizing switching strategy for azobenzene photoswitch
Azobenzene photoswitches serve as key building blocks for smart materials due to the controllable isomerization and machinability. However, traditional cis-trans isomeric azobenzene photoswitches are...
Low-temperature high-quality epitaxial AlN films deposited by plasma-enhanced atomic layer deposition
This work demonstrates low-temperature epitaxial growth of aluminum nitride (AlN) films by plasma-enhanced atomic layer deposition (PEALD). AlN, an ultra-wide bandgap semiconductor with broad applicat...
Widely tunable cavity-enhanced backward difference-frequency generation
Difference-frequency generation (DFG) is a powerful technique for generating widely tunable infrared radiation. However, conventional phase-matching schemes may require tuning multiple parameters—such...
A perspective and review of polarization inverted multilayer BAW resonators based on ScAlN piezoelectric films
The ScAlN film has a large electromechanical coupling and low mechanical loss, enabling RF filters with wide bandwidth, low insertion loss, and a steep filter skirt. In order to meet the growing deman...
Extrapolative prediction of polymer properties using physics-informed hierarchical descriptors
Accurately predicting the properties of polymers is essential for data-driven materials design. However, such predictions are often challenged by the limited availability of polymer-related data and t...
Achieving fully compensated ferrimagnetism through two-dimensional CrI3/CrGeTe3 heterojunctions
In addition to altermagnets, fully compensated ferrimagnets are another category of collinear magnetic materials that possess zero-net total magnetic moment and exhibit spin-splitting, making them pro...
Gradient-segmented flag triboelectric nanogenerator for omnidirectional wind sensing and self-powered warning
Extreme wind events are increasing due to environmental degradation, often causing power outages and safety risks. To enable reliable sensing under such conditions, a gradient-segmented flag triboelec...
Hybrid improper ferroelectricity and phase transition in La2Sr(Sc1− <i>x</i> In <i>x</i> )2O7 ceramics
Oxygen octahedral rotation is essential for hybrid improper ferroelectrics (HIFs), but interlayer rumpling will compete with oxygen octahedron rotation, leading to the suppression of ferroelectricity...
Electric field tuning phase transition behavior and the discharge performance of (Na0.5Bi0.5)TiO3 ferroelectric ceramics under shock compression
Ferroelectric materials, owing to their polar structures and spontaneous polarization, can rapidly release charges under shock loading, offering striking potential for high-power pulsed power sources...
Unveiling laser-induced ultrafast switching mechanism in ferromagnetic spin valves
The recent demonstration of single-shot ultrafast magnetization reversal in ferromagnetic spin valves—combining spin-transfer torque with optically induced ultrafast switching—has offered a promising...
In-plane optical anisotropy in PbI2 nanosheets induced by CrOCl
Interface symmetry breaking in heterojunctions can introduce enhanced performance in optoelectronic devices, tunnel transistors, and catalytic applications. Herein, we report a solution recrystallizat...