Applied Physics Letters
Articles in this Issue
Publisher's note: “Quantum cascade detectors based on dual-upper-state active regions with a broadband response” [Appl. Phys. Lett. <b>128</b> , 093308 (2026)]
Electro-thermal crosstalk revealed by Raman thermography in multi-fin β-Ga2O3 FinFETs
β - G a 2 O 3 FinFETs are promising for high-power electronic applications owing to their ultra-wide bandgap and high breakdown field. To overcome the inherently limited current capability of single-f...
Canceling second-order frequency shifts in Ge hole spin qubits via bichromatic control
Germanium quantum dot hole spin qubits are compatible with fully electrical control and are progressing toward multi-qubit operations. However, their coherence and calibration stability are limited by...
All-electrical switching of spin texture in a strain-tunable 2D Janus ferroelectric altermagnet
Altermagnetism (AM), a collinear magnetic phase with momentum-dependent spin splitting, is a promising candidate for strong magnetoelectric coupling. However, realizing direct and tunable coupling bet...
Stress-modulated ferroelectricity and dielectric response in HfO2
HfO 2 -based ferroelectrics offer exceptional silicon compatibility and scalability for next-generation nonvolatile memory, yet the fundamental role of mechanical stress in their functional properties...
Gate voltage-controlled magnetic anisotropy at the Pt-porphyrin functionalized graphene/NiFe interface
We report a novel approach for engineering large voltage-controlled magnetic anisotropy (VCMA) and enhanced spin–orbit coupling (SOC) at the interface between single-layer graphene (SLG) and NiFe thro...
Improved Ec control in Hf1−xZrxO2 FeNAND applications using SiO2 nanolaminate structure
The coercive field (Ec) is a key parameter governing the switching behavior of ferroelectric devices, yet its effective modulation remains challenging due to intrinsic material constraints. In this st...
Stress and doping analysis of low n-doped GaN layers on various substrates by micro-Raman mapping
In this work, using micro-Raman spectroscopy mapping, we propose a methodology to separate the stress effect from the n-doping effect on A1LO and E2H GaN phonon modes frequency for low n-doped (&l...
Study of leakage current in GaN junction field-effect transistor under heavy ion radiation
GaN junction field-effect transistors (JFETs) were fabricated and subjected to 333.7 MeV gold (Au) ion irradiation to investigate the effects of swift heavy ions on device performance. Electrical char...
Multi-mechanism synergistic regulation of charge dynamics in epoxy composites via plasma-assisted polydopamine interface engineering
The accumulation and migration of space charges severely limit the application of polymer insulation in high-voltage direct current systems. This study investigates epoxy resin composites modified wit...
Pyro-Phototronic Effect enhanced position-sensitive detection observed in ZnO nanowires/Ag2S quantum dots heterojunction
The development of position-sensitive detectors (PSDs) with high sensitivity and ultrafast response is essential for advanced applications like dynamic tracking and artificial vision. However, limited...
Orbital current induced angular-dependent magnetoresistance in Mn4N/Ti bilayers
The detection of orbital currents in ferromagnetic/light-metal bilayer systems has remained a challenging task in recent studies. In this work, Mn4N epitaxial thin films and Mn4N/Ti bilayers with perp...
Suppressed electron–phonon coupling in Ag-doped CsPbBr3 for high-performance photodetectors
Charge transport in metal halide perovskites is strongly limited by electron–phonon coupling (EPC) and trap-assisted recombination, which together hinder carrier mobility and device efficiency. Theref...
Impact of substrate resistivity on the high-power and long-lifetime conduction characteristics of intrinsically triggered 4H-SiC PCSS
The conduction efficiency and reliability of photoconductive semiconductor switches (PCSSs) are strongly influenced by the resistivity of semi-insulating 4H-SiC substrates. In this work, PCSSs fabrica...
Comparing the phonons and vibrations in carbon allotropes with neutron spectroscopy: Microdiamond, few-layer graphene, and amorphous fibers
Powder-averaged inelastic neutron spectroscopy was performed in order to compare the phonons of microdiamond, few-layer graphene, and amorphous carbon fibers at room temperature. Both acoustic and opt...
Anomalously low thermal conductivity in a light-element cubic semiconductor: Cubic BeB2
Cubic semiconductors composed of light elements, such as diamond and boron nitride, typically exhibit exceptionally high thermal conductivity. Recently, a cubic phase of BeB2 was predicted to possess...
Achieving ultralow critical micelle concentration of surfactant with an unlocked aggregation-induced emission probe under pressure
The ultralow critical micelle concentration (CMC) for micellar stability is crucial in photovoltaic devices, optoelectronic technologies, and biosensors. While aggregation-induced emission (AIE) probe...
A high-current hydrovoltaic generator enabled by MXene/Al2O3 hybrid interfaces
The growing demand for distributed energy systems and wearable electronics has spurred strong interest in hydrovoltaic technologies. However, the vast majority of metal oxide-based hydrovoltaic device...
Investigation of the RF performance degradation in GaN HEMTs associated with the kink effect
This work comprehensively investigates the RF performance degradation in GaN high-electron-mobility transistors associated with the kink effect. A pulsed kink amplitude modulated method is proposed to...
<i>In situ</i> frequency tuning of superconducting resonators via nonlinear kinetic inductance
Superconducting microresonators have diverse applications, including microwave kinetic inductance detectors, microwave superconducting quantum interference device multiplexers, and superconducting qub...
Low-temperature plasma-enhanced ALD of c-axis textured GaN on sapphire
This paper demonstrates the deposition of GaN on c-plane sapphire by plasma-enhanced atomic layer deposition (PE-ALD) at 250 °C using triethylgallium and forming gas (95% N2, 5% H2) plasma. The films...
Localized overheating-induced microbubble in optically trapped materials
Microbubbles are found in many physical phenomena, and their generation mechanisms are diverse. In this Letter, we observed the microbubble generation effect in the interaction between highly focused...
Gravity-driven gradient engineering of room-temperature perovskite thin films for spectral and photodetection applications
Integration and miniaturization of optoelectronic devices are pivotal for advancing their transition from specialized instruments to consumer electronics. Laterally graded thin films enable multiple d...
On-state performance enhancement of copolymer-based organic field effect transistors enabled by an organic metal salt dopant
Organic field effect transistors (OFETs) based on copolymers are promising for flexible and stretchable electronics, yet their large-scale application is often limited by relatively poor performance....
Separable behavior of magnetic heat capacity and thermal expansion in Ni, and their relation
The magnetic phase in Ni shows an endothermic peak in heat capacity and a positive peak of thermal expansion near magnetic phase transition. The relation between heat capacity and thermal expansion of...