Applied Physics Letters
Articles in this Issue
Determining the optical and polaritonic properties of isotopically pure hBN using cryogenic FTIR micro-spectroscopy
van der Waals materials support numerous exotic polaritonic phenomena originating from their layered structures and associated vibrational and electronic properties. However, many van der Waals materi...
Ferroelectric polarizations engineered reversible skyrmion–bimeron switch in van der Waals heterostructure RuClBr/Ga2S3
Controllable operation between different magnetic topological states, such as skyrmions and bimerons, which share the same topological charge but exhibit distinct properties, has garnered extensive at...
An optically transparent rectifying metasurface for 2.4/5.8 GHz dual-band RF energy harvesting
In this paper, an optically transparent rectifying metasurface system (RMS) is designed and validated for simultaneously harvesting radio frequency (RF) energy while enabling the efficient transmissio...
Formation of high-quality SiO2/<i>β</i>-Ga2O3(001) MOS structures: The role of post-deposition annealing
We investigated the effect of post-deposition annealing on the electrical characteristics of SiO2/β-Ga2O3(001) MOS structures. While oxygen annealing effectively improves the interface properties, it...
Fragmented charged domain wall below the tetragonal-orthorhombic phase transition in BaTiO3
Ferroelectric charged domain walls are known for their high electrical conductivity, making them promising candidates for modern electronics. A remarkably high conductivity and nominal charge density...
High-performance mid-infrared plasmonic bispectral routers by inverse design
In modern imaging systems, the application of multispectral imaging technologies is pervasive, furnishing an enhanced spectrum of information. Multispectral methods typically employ arrays of filters...
A dual-biomimetic surface with leaf-skeleton-based hierarchical structures for efficient atmospheric water harvesting
Atmospheric water harvesting (AWH) has been extensively researched as a sustainable solution to current freshwater scarcity. Various bioinspired AWH surfaces have been developed to enhance water-harve...
Rb 2 Ti 2 O 5 : A layered ionic conductor at the sub-micrometer scale
Over the past few years, ionic conductors have gained a lot of attention because of the possibility of implementing them in various applications such as supercapacitors, batteries or fuel cells, and r...
Single resonant cavity enhances the second harmonic generation of layered ferroelectric NbOCl2
Second harmonic generation (SHG) is a common nonlinear optical process with wide applications. Recent studies have found that the van der Waals crystal material NbOCl2 has a high efficiency in SHG, an...
A 614 MW/cm2 AlGaN-channel Schottky barrier diode with high breakdown voltage and high temperature sensitivity
In this work, a high-performance AlGaN-channel Schottky barrier diode with high breakdown voltage of 2.23 kV defined at anode leakage current of 1 μA and high power figure-of-merit of 614 MW/cm2 is de...
Advanced thermal boundary resistance measurement techniques for thick-film diamond heterostructures
With the miniaturization of electronic devices, thermal management has become a critical challenge, especially for high-power systems where efficient heat dissipation is essential. Polycrystalline dia...
Ghost imaging through complex scattering media with random light disturbance
Imaging in a complex environment is recognized to be challenging in various applications. Imaging with single-pixel detection, e.g., ghost imaging (GI), emerges as a solution in recent years. Here, we...
Sliding ferroelectricity-induced triple barrier modulation in van der Waals boron arsenide tunnel junctions
To develop low-power, miniature, nonvolatile memory resistor integrated devices for in-memory computing technologies, the exploration of atomic-scale ferroelectric channel semiconductor devices is nec...
Study of carrier diffusion in InGaN/GaN quantum wells: Impact of quantum well thickness and substrate type
In InGaN/GaN micro-light-emitting diodes (μLEDs), the size-dependent efficiency loss is commonly attributed to carrier diffusion within quantum wells (QWs). When the μLED size is sufficiently small, c...
Effect of doping in small-size hybrid nanostructures for plasmonic catalysis
The effect of doping on the lowest quantum state of hot electron trapped in the semiconductor shell of small size hybrid nanoparticles is investigated. Assuming a spherical Ag-AgBr hybrid nanoparticle...
Ultrafast manipulation of Néel-type merons using electric field pulses
A nanoscale meron, as a type of topological magnetic soliton with half topological charge, can function as a quantum mechanical object whose core spin (polarity) represents the qubit states |0⟩ and |1...
Tunneling effect in quantum-dot light-emitting diodes
Charge carrier transportation in semiconductor films is a fundamental but crucial process for the light-emitting diodes. Although there have been many studies on charge transport properties of devices...
Theoretical analysis of thermal conductivities of water and heavy water based on thermal resistance network model
Thermal conductivity of liquid water is distinct from that of ordinary liquids due to its complex hydrogen bonding network. In this study, we develop the thermal resistance network model, supplemented...
The characteristics of line-shaped defects and their impact mechanism on device performance in <i>β</i>-Ga2O3 Schottky barrier diodes
Beta-phase gallium oxide (β-Ga2O3) has attracted increasing attention in the field of power electronic devices due to its ultra-wide bandgap and high Baliga figure-of-merit. However, the premature bre...
Ferromagnetic permalloy/<i>p</i>-type boron-doped diamond Schottky barrier diodes
Ferromagnetic permalloy/p-type boron (B)-doped diamond Schottky barrier diodes (SBDs) were demonstrated. The SBDs showed a clear rectifying behavior with a high on/off ratio of over 109 and an idealit...
Topological sonic whispering gallery protected by the synthetic Weyl points
The synthetic dimension provides us with a powerful platform to explore the topological properties of matter. In this paper, we choose two physical dimensions (kx and ky) and one geometric structure p...
Nitrogen-induced filament confinement strategy for implementing reliable resistive switching performance in a-HfOx memristors
Hafnium oxide (HfOx) films are highly valued as functional layers in nonvolatile resistive switching (RS) memristors due to their scalability, compatibility with CMOS technology, and high dielectric c...
Improved gate leakage current and breakdown voltage of InAlN/GaN MIS-HEMTs by HfAlOx-based charge-trapping layer dielectric and <i>in situ</i> O3 treatment
In this study, high-performance InAlN/GaN metal-insulator-semiconductor high electron mobility transistors (MIS-HEMTs) are fabricated using HfAlOx-based charge-trapping layer dielectric stack combined...
Heteroatomic doping induces charge rearrangement to optimize carrier dynamics in 2D halide perovskites
It is well established that a number of techniques, including applied electric fields, interfacial engineering, structural torsion, and doping, can modulate the geometric and electronic structures of...
Hydrogen-mediated control of magnetic anisotropy and magnetic domain structure in Co/Pd multilayer
This study demonstrates the reversible transition from perpendicular to in-plane magnetic anisotropy in Co/Pd multilayers induced by hydrogenation, using a magneto-optic Kerr microscope. By controllin...