Applied Physics Letters
Articles in this Issue
Entanglement-based clock syntonization for quantum key distribution networks: Demonstration over a 50 km-long link
We present the implementation of a time synchronization protocol as a part of an experimentally deployed entanglement-based quantum key distribution (QKD) link. The system is deployed over 48 km of op...
Is entropy relevant to gas sensor? The case of spinel (CuCoNiCrMn)3O4 for NO2 detection
In recent years, high-entropy oxides (HEOs) have attracted significant attention owing to the synergistic effects arising from their multi-elemental structure. In this study, we investigate spinel (Cu...
Interface engineering modulation of ferroelectric synapses for high-precision neuromorphic computing
Nb:SrTiO3 (NSTO) are commonly employed as substrate and electrode for BaTiO3-based ferroelectric memristors. These substrates are available in two types. The first one is with the hybrid-terminated in...
Achieving strength–ductility trade-off of brittle soft magnetic multi-principal element alloy via metastability engineering
Soft magnetic multi-principal element alloys (SMMPEAs) are emerging as promising materials for magnetic components in electrical applications and sustainable energy supply. However, achieving both exc...
Measurement of active region temperature in THz quantum cascade lasers by micro-photocurrent spectroscopy
To accurately monitor the actual temperature of a terahertz quantum cascade laser (THz-QCL) under operating conditions, this study proposes a method utilizing micro-photocurrent spectroscopy to determ...
High-quality simultaneous bright-field and dark-field imaging based on the light-field matrix model
Dark-field imaging is widely used due to its high resolution and high contrast, but traditional methods are susceptible to noise interference and require frequent switching between bright-field and da...
Resonant escape in Josephson tunnel junctions under millimeter-wave irradiation
The microwave-driven dynamics of the superconducting phase difference across a Josephson junction is now widely employed in superconducting qubits and quantum circuits. With their typical energy level...
Time-resolved measurements of cumulative effects in gas dynamics induced by high-repetition-rate femtosecond laser filamentation
The advent of high-average-power, ultrafast ytterbium-based lasers allows us to generate laser filaments at repetition rates ranging from tens of kHz up to hundreds of kHz. At such high-repetition rat...
Highly stable InZnSnTbOX thin-film transistors
The trade-off between mobility and stability in oxide thin-film transistors (TFTs) has limited the applications for high-resolution displays. Herein, a multicomponent InZnSnTbOX (IZTTO) thin film is r...
Giant enhancement of the transverse magneto-optical Kerr effect in etchless bismuth iron garnet empowered by quasi-bound states in the continuum
Here, we propose an etchless bismuth iron garnet layer assisted by a one-dimensional resonant grating waveguide to enhance transverse magneto-optical Kerr effect (TMOKE) via the excitation of a quasi-...
Demonstration of AlGaN/GaN HEMT-based non-classical optoelectronic logic inverter
AlGaN/GaN high electron mobility transistor (HEMT) has excellent promise for developing industrially viable optoelectronic logic gates (OELGs). We demonstrate AlGaN/GaN HEMT-based non-classical optoel...
Plasmon-enhanced Ag/Sb2Te3 quantum dots fluorescence
3D topological insulator Sb2Te3 possesses unique optical and electrical properties, while its fluorescence characteristics remain largely unexplored. Here, we report a study on the photoluminescence e...
Role of entropy in silicon carbide polytype competition
Polytype control has long been a critical issue in silicon carbide single crystal growth. Empirically, the competition among different polytypes can be manipulated through temperature, carbon-to-silic...
Defect-related luminescence in BaF2 nanoparticles for plant cell imaging
Materials with luminescent defects, serving as energy traps and luminescence centers, exhibit the advantages of tunable emission spectra and cost-effective synthesis processes and can be used for biol...
Fiber-optic photoacoustic sensor with SF6 purity correction for decomposition derivative H2S based on 1<i>f</i> and 2<i>f</i> dual-modes
A single fiber-optic photoacoustic sensor (FOPAS) is applied for the simultaneous detection of the SF6 purity and decomposition derivative H2S, and the photoacoustic measurement results are corrected...
Mechanism of the negative linear temperature coefficient of resistance in defective nanocarbon materials
This paper presents the evidential results of the negative linear temperature coefficient mechanism commonly observed in defect-containing nanocarbon materials. Single-walled carbon nanotubes (CNTs) w...
Chip-scale self-referenced thermometer based on cascaded ring resonators
In this paper, we proposed a self-referenced temperature sensor with ultra-high stability based on a silicon cascaded microring resonator (CMRR) comprising a reference ring coated with titanium oxide...
Reversible manipulation of field-free perpendicular magnetization switching via electric field
Electric-field control of magnetization switching holds great promise for the development of spintronic devices due to its intrinsically low power consumption. Here, we demonstrate the efficient and r...
Temperature-dependent power generation from HgCdTe and III–V thermoradiative diodes
Thermoradiative power generation, wherein the radiative exchange between a device and its environment leads to the generation of power, is driven by the radiant temperature differential. However, the...
Pressure-induced bandgap narrowing to Shockley–Queisser limit of quasi-two-dimensional perovskite (BA)2(FA)Sn2I7
Quasi-two-dimensional (2D) tin-based perovskites are promising photoelectric materials due to their non-toxicity and excellent photoelectric properties. However, the addition of organic ligands leads...
Giant magnetocaloric effect in Cr-based two-dimensional materials
The rise of two-dimensional magnets offers a broad research platform for exploring low-dimensional magnetocaloric technology for efficient and green refrigeration applications. Here, we focus on a two...
Ultra-low dark current photodetector based on two-dimensional CuCrP2S6 material
Metal thiophosphates have recently emerged as promising two-dimensional (2D) materials for the next-generation photodetectors due to their unique physical and optoelectronic properties. Among them, Cu...
Reasonable designing interfacial charge transfer channels in 2D metal–semiconductor contact: A time-domain ultrafast dynamic study
The van der Waals (vdW) integration of two-dimensional (2D) metal and semiconductor materials holds great potential for realizing Ohmic contacts in electronic and optoelectronic devices, owing to the...
One-shot detection of light ellipticity using a two-dimensional quantum material device
Detection of light ellipticity is of crucial importance for target imaging and recognition in complex scenarios. However, it has been challenging to achieve one-shot detection of light ellipticity by...
Attosecond physics and technology
In this Perspective, we provide an overview of the field of attosecond physics and technology for which the 2023 Nobel Prize in Physics was awarded to Pierre Agostini, Ferenc Krausz, and Anne L'Huilli...