Applied Physics Letters
Articles in this Issue
Spin-wave phase modulation using magnetic domain walls in dipolarly coupled structures for non-volatile magnonic computation
A controllable phase shifter is a key component for spin-wave–based logic and information-processing devices. Here, we propose a domain-wall-position–controlled spin-wave phase shifter that exploits d...
Low-temperature growth of two-dimensional InP nanosheets for optoelectronic applications
Two-dimensional (2D) III–V semiconductors hold exceptional promise for next-generation electronic and optoelectronic devices; however, their scalable synthesis remains a long-standing challenge owing...
Development of a uniform microwave-induced low-temperature plasma jet array at atmospheric pressure
This paper presents the design of a low-temperature microwave atmospheric-pressure plasma jet array operating at 2.45 GHz, based on a power divider and coaxial transmission-line structures. To expand...
Time-resolved interferometric measurements of plasma density evolution in laser-driven capacitor-coil targets
Laser-driven capacitor-coil targets provide a compact platform for generating strong magnetic fields and are widely used in magnetized high-energy-density (HED) plasma experiments. In addition to magn...
Knitting mechanism of skyrmions from interfacial magnetic anisotropies in γ-FeMn/Co bilayer films
Interfacial skyrmions, which hold great promise for applications among various types of skyrmions, typically form through interfacial Dzyaloshinskii–Moriya interactions (DMI) induced by heavy metal la...
Enhanced piezoelectric performance of textured ceramics based on AC polarization technology for ultrasonic transducer
Piezoelectric materials serve as the core component of ultrasonic transducers, where advancing system capabilities necessitates continuously improved performance. To this end, alternating current pola...
Effect of gas exposure on GaN surface quantum wells
Some HEMT transistors and a variety of gas, pH, and molecular sensors use thin GaN capping layers that behave as surface quantum wells (SuQWs), such as those formed by a thin GaN layer with vacuum or...
Hierarchical spectral inhomogeneity in photoluminescence of a twisted MoSe2/WSe2 heterobilayer moiré superlattice revealed by hyperspectral mapping
Low-temperature photoluminescence from a MoSe2/WSe2 moiré superlattice often consists of a broad interlayer emission background with dense, narrow peaks, making microscopic line-by-line assignment dif...
All-optical switching in CoFeB-based artificial ferrimagnets
We demonstrate deterministic all-optical switching (AOS) triggered by single femtosecond laser pulses in CoFeB-based artificial ferrimagnets consisting of Co/Gd/CoFeB trilayers. We show that AOS in th...
Turning etching by-products into active sites: <i>In situ</i> construction of MoB/ZnS heterostructures for high-rate sodium-ion capacitors
High-performance sodium-ion capacitor anodes require the simultaneous achievement of rapid kinetics and structural robustness. However, conventional MBene synthesis involves the wasteful removal of me...
Electrically controlled tuning the nonlinearity and asymmetry of synaptic behaviors in a magnetoelectrically coupled memristor for high-performance neuromorphic computing
High-performance artificial synaptic devices capable of emulating biological synaptic functions are crucial for developing energy-efficient neuromorphic computing systems. Memristors, whose conductanc...
Observation of bandgap narrowing in <i>p</i> -type doped GeSn alloys
A series of p-type doped GeSn samples has been epitaxially grown by the ultra-high vacuum chemical vapor deposition method, and direct bandgap narrowing (BGN) is observed through photoluminescence and...
Composition-driven tunable optical and electrical properties in van der Waals ferroelectric NbOI2− <i>x</i> Cl <i>x</i> alloys
Layered niobium oxide dihalides NbOX2 (X = I, Cl), as a new family of van der Waals (vdW) ferroelectrics, have attracted extensive attention, but achieving nonvolatile modulation of their optical and...
Laser-engineered oxygen-vacancy-rich CeO2/graphene heterostructures for high-performance planar micro-supercapacitors
The planar miniature supercapacitors (PMSCs) based on laser-induced graphene (LIG) are promising miniaturized energy storage systems, yet their practical deployment is constrained by low areal capacit...
Asymmetric gate modulation induced by device geometry in dual-gated WSe2 and WS2 transistors
Two-dimensional (2D) transition metal dichalcogenides have enabled new opportunities for exploring electrostatic control and contact engineering in atomically thin semiconductors. Here, we study dual-...
Revisiting single-point-source localization in Compton cameras through detector-level statistical cues revealed by ComptonNet analysis
Compton cameras are widely used for gamma-ray imaging owing to their high sensitivity, wide field of view, and broad energy coverage. Recent deep-learning models, such as ComptonNet, have demonstrated...
Enhancement of mid-infrared electroluminescence in black phosphorus with an electron blocking layer
Black phosphorus (BP) has been demonstrated to have a high light-emitting efficiency in the mid-infrared regime due to its direct bandgap and suppressed Auger recombination effect. Optimization of dev...
Effects of electrode geometry and sub-bandgap excitation in <b> <i>β</i> </b> -Ga2O3 photoconductive semiconductor switches
This work reports enhanced photoconductive switching performance in Fe-doped β-Ga2O3 PCSS by concurrently optimizing electrode geometry and the optical excitation wavelength. By systematically varying...
Two-dimensional monolayer CuXSe2 (X <b>=</b> Cl, Br) as a potential medium-temperature thermoelectric material
Numerous two-dimensional materials show remarkable thermoelectric (TE) performances due to quantum confinement effects. However, identifying ideal TE materials with low thermal conductivity and high S...
Broadband and high-responsivity SiC-based hot-electron photodetector driven by TiN/SiN core-cap disk array
Silicon carbide (SiC) photodetectors are highly valued for their exceptional stability in harsh environments. However, their wide bandgap (∼3.3 eV) fundamentally constrains the spectral response, limi...
Anisotropic phonon response to electron irradiation in <b> <i>β</i> </b> -Ga2O3 single crystals revealed by temperature-dependent Raman spectroscopy
The β-phase of gallium oxide (β-Ga2O3) is an ultrawide bandgap semiconductor with excellent electrical properties and strong radiation tolerance, making it a promising candidate for electronic devices...
Higher-order topological phase in planar hexacoordinate X2Y monolayers (X = Cu, Ag, or Au; Y = Si, Ge, Sn, or Pb)
Topological insulators (TIs) exhibit insulating bulk behavior with conducting boundary states protected by symmetry and spin–orbit coupling (SOC). Recently, the concept of higher-order topological ins...
Unraveling coupled electronic and lattice dynamics in germanium via SVD-assisted ultrafast ellipsometry
We demonstrate a Singular Value Decomposition (SVD)-based framework to disentangle overlapping electronic and lattice dynamics in germanium probed by femtosecond spectroscopic ellipsometry. The transi...
Modulation of magnon lifetime through magnon–magnon coupling
The dynamic control of magnon lifetime via magnon–magnon coupling (MMC) is crucial for spintronic applications, yet the underlying mechanisms governing the evolution of dynamical parameters during the...
Charge-transfer-induced ultrafast valley depolarization in WS2/GaSe van der Waals heterostructures
The interfacial processes of two-dimensional van der Waals heterostructures (vdWHs) are of critical importance to their ultrafast carrier transfer dynamics and device performances as optoelectronic an...