Applied Physics Letters
Articles in this Issue
Giant super-Nernstian potentiometric response of InN quantum dots on self-formed core–shell InGaN nanowires
A maximum of 180 mV/decade potentiometric response is discovered for InN quantum dots grown on self-formed core–shell InGaN nanowires, surpassing the thermodynamic Nernst limit of 2.3 kT/e = 59 mV/dec...
Frequency-modulation atomic force microscopy observation of 1T-TaS2 in the nearly commensurate charge density wave phase
Charge density wave (CDW) is an electron–phonon correlated phenomenon in which charge density modulation and atomic lattice distortion are entangled. Here, we investigate the nearly commensurate CDW p...
Low-voltage transistor array with dynamic synaptic plasticity for neuromorphic computing
This study demonstrates the integrated junctionless indium-tin-oxide transistor arrays for neuromorphic computing, exhibiting remarkable stability and consistency. Stable and dynamic synaptic plastici...
Electronic band structure modulation in Cs2AgInCl6 single crystals by Bi ion alloying
The tunability of the bandgap and other optical properties of Cs2AgInCl6 through Bi alloying have recently garnered increasing attention. However, the corresponding valence band structure evolution in...
GaN cap impacts on gate leakage mechanisms in AlGaN/GaN high-electron mobility transistors
In this Letter, the impacts of the GaN cap on the gate leakage mechanisms have been investigated in the recessed-gate AlGaN/GaN high-electron-mobility transistors. The recessed gate with GaN cap remov...
Plasmon-enhanced photoluminescence of single upconversion nanoparticles site-selectively captured between gold nanorods
Upconversion nanoparticles (UCNPs) have attracted great interest due to their unique properties such as anti-Stokes shift, high biocompatibility, and photostability compared with other fluorophores. S...
Programmable microfluidic metasurfaces for reconfigurable beam steering
This Letter introduces the concept of programmable microfluidic metasurfaces for reconfigurable beam steering, addressing the limitations of conventional metasurfaces that rely on nonlinear materials,...
Efficient terahertz spin-to-charge current conversion in IrAl compounds
The interconversion between spin and charge currents is vital for developing spintronics technologies, which require materials with high spin-to-charge-current conversion efficiency (SCC). The alloy I...
Substrate-induced interfacial interactions in MOCVD-grown monolayer MoSe2
Transition metal dichalcogenides (TMDCs) have garnered considerable interest for next-generation optoelectronic applications. However, the atomically thin properties of TMDCs make them highly sensitiv...
Interband cascade devices with switchable laser and superluminescence mode
Superluminescent diodes are usually hard to fabricate and cannot switch to lasing operation. We demonstrate a practical approach for creating devices that can function as a laser as well as a superlum...
Kinetics of the bct–bcc phase transformation in tin revealed by ultrafast x-ray diffraction
Understanding structural phase transitions is crucial for predicting the macroscopic behaviors of materials under shock compression. In this study, we employed in situ x-ray diffraction to investigate...
Underlayer catalytic effect on hydrogen-induced modulation of ferromagnetism
The modulation of magnetic properties via chemical state control, particularly using hydrogen (H2), has attracted attention in spintronics. In this study, we investigate the underlayer catalytic effec...
Deep learning reveals direct correlation between red blood cell morphology and deformability
The deformability of red blood cells (RBCs) is a critical factor in understanding cardiovascular diseases and serves as a key determinant of RBC lifespan. Abnormal RBC deformability can lead to impair...
Synergistic thermal and magnetic influences on non-Newtonian hybrid Casson nanoblood flow in arterioles
Analyzing blood flow patterns plays a pivotal role in diagnosing circulatory disorders, including arteriosclerosis. This significance has driven bio-engineers and medical researchers to concentrate on...
Off-diagonal thermoelectric effect and its gate tuning in molecular conductor κ-(BEDT-TTF)2Cu[N(CN)2]Cl
We report on the off-diagonal (transverse) thermoelectric effect in the molecular conductor κ-(BEDT-TTF)2Cu[N(CN)2]Cl, originating from the coexistence of the two-dimensional hole-like and one-dimensi...
Thin absorber AlInAsSb 2-μm SACM APDs with very low and tunable dark currents at room-temperature
AlxIn1−xAsySb1−y digital alloys on GaSb separate absorber charge multiplier avalanche photodiodes that absorb at 2-μm wavelengths have been grown with relatively thin absorber layers ranging from 50 t...
Electric vector-adapted thermoacoustic computed tomography for dynamic imaging sub-organ features in deep tissue
Imaging biological tissue with high spatiotemporal resolution is essential for acquiring physiological and pathological information about organisms. Microwave-induced thermoacoustic (TA) tomography (M...
Intelligent sports interactive monitoring system based on self-driven sensing-augmented reality fusion
The integration of augmented reality (AR) technology with sports science delivers innovative solutions for monitoring adolescent health and enhancing exercise participation. This study introduces an i...
MoS2 encapsulated FeS2 composite anchored on graphite substrate for high-performance sodium-ion batteries
Transition metal sulfides (TMSs) are currently recognized as promising anode materials for sodium-ion batteries owing to their high theoretical capacities and relatively weak M–S bonds. However, TMSs...
High-power 2.2 THz quantum-cascade laser with sixth-order distributed feedback
A distributed-feedback (DFB) scheme with sixth-order Bragg gratings realizes high-power emission for low-frequency single-mode terahertz quantum-cascade lasers (QCLs). The gratings are implemented in...
Self-powered deep-UV photodetectors based on (In,Ga)O nanowires for humanoid robots controlling
Self-powered ultraviolet (UV) photodetectors hold significant commercial and practical value and are expected to be one of the next-generation optoelectronic devices requiring ultralow energy consumpt...
A quick prediction for the transformation of red blood cell morphology with deep learning technique
Red blood cells (RBCs) are essential for maintaining human health, and their morphological abnormalities serve as critical diagnostic indicators for various blood disorders. To predict RBC morphology...
Signature of canted ferromagnetism in van der Waals Fe5−<i>x</i>GeTe2 flakes
Van der Waals ferromagnetic materials, serving as an innovative platform for tailoring magnetic anisotropy and anisotropic magnetoresistance, offer great opportunities for designing and manipulating s...
Enhanced electromagnetic wave absorption of Y2Fe16Si by atomic layer deposition coating
Surface modification of metallic magnetic powders is important to regulate high-frequency electromagnetic properties for microwave absorbing composite materials composed of these powders and insulatin...
Observation of steerable polarization conversion in metasurfaces with parity-time phase transition
One of the primary objectives in the realm of light manipulation is the flexible and active control of polarization, which constitutes an essential degree of freedom of photons. Recently, it has been...