Applied Physics Letters
Articles in this Issue
Enhanced negative terahertz photoconductivity enabled by interfacial charge transfer in Te/graphene mixed-dimensional heterojunction
Negative terahertz photoconductivity is a rare effect that holds great significance for numerous applications. However, the maintenance and enhancement of negative photoconductivity response still fac...
Stable elastocaloric effect in a directionally solidified Ni54Fe19Ga27 alloy under low driving stress
Heusler-type Ni–Fe–Ga-based alloys exhibit a large elastocaloric effect under low driving stress, yet the intrinsic brittleness of polycrystalline alloys significantly cripples their cyclic stability...
Rapid synthesis of single-atom Pt co-catalyst under containerless acoustic levitation state
An acoustic levitation method is employed to assist single-atom platinum dispersion on graphitic carbon nitride (g-C3N4). It simulates a space containerless environment through the nonlinear effect of...
Performance enhancement in NbO2/HfO2 bilayer threshold switching memristor as an oscillatory neuron
NbO2-based threshold switching (TS) devices show great potential for artificial neurons in neuromorphic computing. Here, by inserting an HfO2 layer with a thickness of 10 nm, an NbO2/HfO2 bilayer memr...
Strain effect on optical properties and quantum weight of monolayer MnBi2X4 (X = Te, Se, S)
Manipulating the optical and quantum properties of two-dimensional (2D) materials through strain engineering not only is fundamentally interesting but also provides significant benefits across various...
Ferroelectric ZrO2/Hf0.5Zr0.5O2 epitaxial Moiré heterostructures
While oxide heterostructures with emergent properties have garnered a great amount of research interest, heterostructures consisting of oxides with metastable phases have barely been investigated. Her...
Charge transport and electric field-dependent exciton dissociation in organic semiconductors measured using accumulation at an insulator–semiconductor layer
Knowledge of charge transport and exciton behavior in organic semiconductor materials is essential to develop high-performance devices. Experimental methods based on the photogeneration of charges off...
Parametric amplification via coupling linear and nonlinear superconducting resonators
We experimentally demonstrate a coupled superconducting resonator system in which a superconducting quantum interference device (SQUID) modulated nonlinear resonator is capacitively coupled to a fixed...
Unusual vibron behavior and Clapeyron slope reversal in cold dense nitrogen
Nitrogen exhibits a rich and complex pressure–temperature (P–T) phase diagram. However, the low-temperature and ultrahigh-pressure phase spaces (T < 300 K and 60 GPa < P < 180 GPa...
Mechanism of critical Weber number for superhydrophobic surface roughness regulating droplet splash
The texture of superhydrophobic surfaces can reduce solid–liquid contact time by altering the droplet impact dynamics, which is widely used in applications such as self-cleaning and anti-icing. Howeve...
Inseparability between charge-injection barrier and out-of-plane mobility in staggered thin-film transistors
Contact resistance significantly affects the performance of thin-film transistors (TFTs), while its diverse material, structural, and mechanistic origins are yet to be fully conceptualized. This Lette...
Hopping conduction in quasi-1D titanium trisulfide layered nanoribbons
Quasi-one-dimensional (quasi-1D) layered nanoribbons (NRs) are being extensively investigated for their potential applications in next-generation nanoelectronics and optoelectronics. Understanding ele...
The effect of doping layers position on the heterojunction sharpness in (In,Al)As/AlAs quantum dots
The effect of a doping layer placed in heterostructures with an indirect bandgap (In,Al)As/AlAs quantum dots (QDs) on the heterointerface sharpness is examined. We demonstrate that growing an n (p) do...
Thermal boundary resistance measurement of GaN/Al2O3 interfaces based on heat source thermometry separation integrated chip
The influence of interfacial thermal boundary resistance (TBR) on the thermal performance of heterojunction devices is becoming increasingly significant, making TBR measurements a key area of interest...
Tunable and broadband hybrid comb based on electro-optic modulated mode-locked laser
Currently, integrated combs primarily rely on the Kerr effect, electro-optic (EO) modulation, or mode-locking (ML) mechanisms, each offering distinct advantages and limitations, leading to broad bandw...
Magnetization spinodal: A mechanism of magnetization switching
Magnetization switching is fundamental to the functional properties and technological applications of ferromagnetic materials. Currently, three mechanisms of magnetization switching have been identifi...
Non-reciprocal magnonic directional coupler induced by interfacial Dzyaloshinskii–Moriya interaction
An integrated magnonic device is a miniaturized system that manipulates magnons to perform computing, signal processing, or sensing functions. These devices leverage the wave-like nature of magnons to...
Reactive sputtering of vertically aligned vanadium oxide nanorods on an eco-friendly polymeric substrate for low-cost, flexible, and sustainable supercapacitors
As technology advances, there is a growing demand for flexible supercapacitors (FSCs) with high energy storage capabilities to facilitate seamless integration with wearable electronics. In particular,...
Directional coupling of the spin waves in a resonator system of T-shaped magnonic microwaveguide
Here, we report an experimental and theoretical study on the directional coupling of spin waves in a T-shaped magnonic microwaveguide. A high-quality yttrium iron garnet film was structured via precis...
Optically assisted loading of single micro-diamonds in a Stylus trap under ambient conditions
The controlled trapping of micro- to submicrometer-sized particles is crucial for fundamental research, precision metrology, and applied technologies. However, existing loading methods often rely on s...
Gear-based metamaterials for extraordinary bandgap tunability
Metamaterials can be engineered with tunable bandgaps to adapt to dynamic and complex environments, particularly for controlling elastic waves and vibration. However, achieving wide-range, seamless, r...
Tip-enhanced Raman spectroscopy of cell wall heterogeneity for <i>Aspergillus Fumigatus</i>
Tip-enhanced Raman spectroscopy (TERS) enables nanoscale chemical mapping of biological structures beyond the capabilities of conventional Raman imaging. However, challenges such as the deformation of...
Hidden ferromagnetic phase and wrinkling-controlled magnetism in freestanding LaCoO3 membranes
Observation of hidden phases provides unique opportunities in revealing phase transition mechanisms. LaCoO3 thin film is a rare perovskite-oxide ferromagnetic insulator. LaCoO3 is paramagnetic in bulk...
Lattice dynamics of piezoelectric response of 2D Janus Y2Se2IF under strain
Two-dimension (2D) Janus materials with asymmetric atomic structure have been found to have unique intrinsic vertical polarization properties, where an electron is more likely to deviate from the neut...
Variable wavelength-multiplexed dual-comb generation and spectroscopic measurement by a free-running all-normal-dispersion Yb-doped fiber laser
Single-cavity Er-doped mode-locked fiber lasers that can generate dual frequency combs with distinct repetition rates hold significant potential for low-complexity dual-comb metrology applications. Re...