Applied Physics Letters
Articles in this Issue
Carrier–phonon decoupling via annealing enhances thermoelectric performance of Bi2(Te,Se)3
Thermoelectric cooling based on the Peltier effect requires high-performance materials near room temperature. While Bi2Te3 remains the most viable commercial thermoelectric material, n-type Bi2Te3−xSe...
Realization of encircling the exceptional point in non-Hermitian acoustic waveguide coupler
The encirclement of exceptional points (EPs) in parametric space has been realized in optical waveguides, microwave cavities, nitrogen-vacancy centers, and so on. However, it often suffers from comple...
Stable high-temperature operation of E/D-mode tri-gate AlGaN/GaN MIS-HEMTs with digital recess technique for monolithic integration
This Letter presents tri-gate GaN metal–insulator–semiconductor high-electron-mobility transistors (MIS-HEMTs) with improved high-temperature performance for a monolithic integration platform, utilizi...
Defining aerodynamic modes of large-scale birds' covert feathers
The aerodynamic stability of large-scale birds, attributed to their covert feathers, has long fascinated biologists and bio-inspired design communities. However, existing theories cannot accurately de...
Sliding-engineered multiple conductive states in van der Waals VSe2 devices
Multiferroic (MFE) systems with rich tunability encompassing multiple degrees of freedom like spin and dipole are competitive candidates for nonvolatile memory applications. The development of two-dim...
Attenuated total reflection measurements of superconductors: Addressing light-induced changes in superconductivity
We explore the behavior of superconducting materials using attenuated total reflection (ATR) measurements. Mid-infrared ATR measurements in the Kretchman and Otto configurations reveal the possibility...
Electron and photon induced selenium migration in single crystal 2H-NbSe2
Transition metal dichalcogenides like 2H-NbSe2 exhibit remarkable electronic properties, but their performance is highly sensitive to defects, particularly selenium vacancies. Here, we demonstrate con...
Discharge similarity in capacitive radio frequency carbon tetrafluoride plasmas
Although similarity laws for breakdown have been demonstrated for molecular gases (e.g., N2 and NF3), their application to rf plasmas in electronegative gases remains unexplored. In this Letter, we re...
Improved PO scattering algorithm for vortex EM waves using equivalent edge current analysis
A modified physical optics (PO) scattering algorithm for analyzing the high-frequency electromagnetic (EM) scattering of vortex wave fields is proposed in this Letter. While traditional PO methods str...
All-polymer organic solar cells with fused carbazole acceptors for indoor photovoltaics
The rapid expansion of the Internet of Things (IoT) necessitates maintenance-free, high-efficiency power sources. Organic solar cells (OSCs), offering superior spectral alignment with indoor lighting,...
Enhancing long-cycle stability of CuFeS2/EG anode for sodium-ion batteries by mitigating crosstalk effect
The practical deployment of transition metal sulfide anodes for sodium-ion batteries (SIBs) is hindered by critical challenges, including rapid voltage decay and poor cycling stability, primarily attr...
Direct encapsulation of nanoclusters into carbon nanotube microfibers for thermal engineering applications
The encapsulation of nanomaterials into carbon nanotubes (CNTs) has garnered considerable attention for its potential to enhance the intrinsic physical properties of CNTs. Although various encapsulate...
Selective microthermal actuation enabled by complex patterning of laser-induced graphene
Laser-induced graphene (LIG) patterned in a single-pass CO2-laser step enables addressable microheaters on flexible polyimide films. By tuning linewidth, gap, and electrode layout, discrete LIG elemen...
Meta-dissipation: A framework for quantifying energy dissipation in dissipative discrete periodic metamaterials
Quantifying energy dissipation in dissipative periodic discrete metamaterials remains a challenge, as traditional interpretations of metadamping, based on summing modal damping ratios, do not consiste...
Type-1.5 SNSPD: Interacting vortex theory of two bandgap superconducting single photon detectors
Photon detectors based on type-2 superconductors have found widespread applications from on-chip quantum computing to quantum remote sensing. Here, we develop the theory for a different class of type-...
Anisotropic photodetection in monoclinic SnP2S6 single crystals
Anisotropic crystals possess unique direction-dependent physical properties, making them potentially promising for optoelectronics, nonlinear optics, and photodetection applications. Metal thiophospha...
Causal discovery from data assisted by large language models
Knowledge-driven discovery of novel materials necessitates the development of causal models for property emergence. While in the classical physical paradigm, the causal relationships are deduced based...
Effects of nitrogen passivation on the capture cross section energy distribution of 4H-SiC/SiO2 interface defects and the temperature dependences of leakage current
Nitrogen passivation has been established as an effective method to decrease the interface state density (Dit) for silicon carbide (SiC) devices. However, the effect of nitrogen passivation on the car...
Boosting the electrocaloric effect with broad working temperature span in lead-free relaxor ferroelectrics through disorder modulation
Achieving both high electrocaloric effect and broad working temperature span in ferroelectric materials is crucial for practical cooling applications, yet it remains a big challenge. In the present wo...
Tensile strain induced enhancement of the electron transport in polar two-dimensional (2D) InN
Two-dimensional (2D) semiconductors have been regarded as promising candidates for next-generation nanoelectronics devices. However, the intrinsically low carrier mobility severely limits device perfo...
Quiescent power consumption of carbon-based analog operational amplifiers at low temperatures
In modern integrated circuit systems, quiescent power consumption increases with higher integration density, posing a fundamental limitation for further integration scaling. This challenge becomes eve...
High-performance non-doped deep-blue/white OLEDs via HLCT-type oxazole emitter with negligible efficiency roll-off
Stable deep-blue emitters with high-efficiency and low-efficiency roll-off are crucial for the commercialization of deep-blue organic light-emitting diodes (OLEDs). Hybridized local and charge-transfe...
Single-event burnout in <i>β</i>-Ga2O3 Schottky barrier diode induced by heavy ion irradiation
This study investigates single-event burnout (SEB) effects in β-Ga2O3 Schottky barrier diodes under heavy ion irradiation. Bi, Ta, and Kr ions with linear energy transfer (LET) values of 99.7, 75, and...
Nonreciprocal spin transport in twisted bilayer zigzag graphene nanoribbons
Zigzag graphene nanoribbons (ZGNRs) with two antiferromagnetic coupled edges possess PT (combined spatial inversion and time reversal) symmetry and spin double degenerate electronic structures. By bre...
Development of the self-aligned top-gate MoS2 transistor with the recorded radiation tolerance
In this study, top-gate molybdenum disulfide (MoS2) field-effect transistors (FETs) with a recorded electron irradiation tolerance up to 1016 e/cm2 fluence were fabricated. To quantify the radiation e...