Applied Physics Letters
Articles in this Issue
Advanced optical reinforcement materials based on three-dimensional four-way weaving structure and metasurface technology
By integrating the design principles of broadband metamaterial absorbers with woven structures, this study introduces a woven composite metamaterial (WCM) made of resin and AlCuFe quasicrystals, enabl...
A 780 nm optical frequency standard based on diffuse laser cooled 87Rb atoms
We demonstrate an optical frequency standard by locking the output frequency of an external cavity diode laser to the 780 nm D2 transition of diffuse laser cooled 87Rb atoms using frequency modulation...
Impact of mechanically applied strain on Auger recombination in InGaAs multiple quantum wells
We present the results of direct measurements of the effect of mechanically applied biaxial strain on Auger recombination rates in InGaAs quantum wells grown on InP. By mounting these structures on a...
BEOL-compatible Te-TeO<i>x</i> p-FETs with channel length down to 50 nm at cryogenic temperatures
In this work, we present p-type Te-TeOx FETs with BEOL-compatibility targeting high-performance computing at cryogenic temperatures. The devices feature aggressively scaled channel lengths (Lch of 50 ...
Non-Hermitian photonics: Guest editorial
High-crystallinity and enhanced mobility in In2O3 thin-film transistors via metal-induced method
Meeting the advanced demands of display technology, developing oxide semiconductor thin-film transistors (TFTs) with high mobility remains a significant challenge in current research. This paper repor...
Significant improvement of energy storage density and efficiency of 0.72Bi0.5Na0.5TiO3-0.28SrTiO3 ceramics and study of the mechanism of high temperature energy storage performance
The energy storage properties of the 0.72Bi0.5Na0.5TiO3-0.28SrTiO3 system have been heavily investigated; however, achieving both high recoverable energy storage density (Wr) and large energy efficien...
Second-order topological insulators in Kekulé-patterned hexagonal biphenylene networks
Biphenylene network, a two-dimensional material, has recently been extensively studied, owing to its potential applications. Here, we introduce an experimentally synthesized configuration of hexagonal...
Near-infrared photoluminescence from bismuth, a deep defect in cesium lead bromide perovskite
Bismuth has been investigated as a potential n-type dopant in hybrid lead halide perovskites, but its behavior in all-inorganic perovskites such as CsPbBr3 has not been thoroughly characterized. We sh...
Compact 852 nm Faraday optical frequency standard
Optical clocks with high precision are practical and necessary in atomic physics, geodesy, gravitational wave measurement, etc. Transportability and environmental adaptability are two key indicators t...
Effect of Cr/Al ratio on the microstructure and mechanical properties of CoFeNiCrxAl1−x high-entropy alloys
Achieving strength-ductility and functional integration is a key issue to promote the application of alloys in the field of functional materials. CoFeNiCrxAl1−x alloys exhibit excellent magnetic and c...
Realizing p-type InSb with enhanced thermoelectric performance via Cd doping
InSb is a promising mid-temperature thermoelectric material, and its n-type thermoelectric properties have been widely studied. For thermoelectric device applications, it is necessary to have p-type c...
Temperature stability of multilayer symmetric KNN-based ceramics with continuous phase transitions
Temperature sensitivity of the lead-free piezoelectric ceramics based on potassium sodium niobate (KNN) has posed a significant challenge for practical applications. In this study, we developed a mult...
From localization to quantum-dot chains in self-formed core–shell InGaN nanowires emitting in the red
Self-formed core–shell InGaN nanowires (NWs) grown by plasma-assisted molecular beam epitaxy on p-Si (111) are studied by temperature-dependent and time-resolved photoluminescence (PL) spectroscopy. C...
Higher-order topological fermion phase and Weyl phonon phase in Li-intercalated graphene layers
Two-dimensional (2D) higher-order topological fermionic phases coexisting with intriguing topological phonon states have recently become a focal point of condensed matter research. However, the coexis...
Theoretical studies of transient hydrodynamic phonon transport in two-dimensional disk geometry
Many phonon hydrodynamics phenomena, including heat vortices, wave and parabolic distributions of heat flux, which appear due to sufficient normal process, can also appear when there is insufficient n...
Alkylamine-tuned MoOx with synergistic manipulation of interlayer spacing and oxygen vacancies toward advanced Li–S batteries
Lithium–sulfur (Li–S) batteries have been considered a promising next-generation energy storage device. However, the serious polysulfide shuttle effect and slow reaction kinetics hampered their develo...
Cryogenic cyclical etching of Si using CF4 plasma passivation steps: The role of CF radicals
Ultraviolet (UV) absorption spectroscopy is used to monitor the CF radical density in CF4 inductively coupled plasma (ICP) plasmas as a function of the substrate temperature. The CF density decreases...
Narrow-linewidth microcavity Brillouin laser based on pump-locked high-Q silica microsphere resonator
Microcavity-based Brillouin lasers are promising high-performance light sources for integrating photonics and optoelectronics. One method to lock the pump light frequency is to utilize a complex syste...
Tunable qubit quantum battery with delta-pulse driving
A quantum battery consisting of two coupled qubits driven by a delta-pulse is investigated. By using the framework of open quantum system, we obtain analytically several quantities describing the perf...
The common structure of multiple instability patterns on free liquid surfaces induced by charge injection
A previously disregarded electrohydrodynamic (EHD) instability pattern at the gas–liquid interface caused by charge injection is elaborately described and identified as the classical EHD instability....
Ultrasensitive probing of nematic order parameter via weak measurement
Nematic order parameter S is one of the most crucial material parameters of the nematic phase, which governs all of the material's anisotropic properties. The enhancement of its measurement precision...
Sub-terahertz PAM4 modulator based on transmission characteristic reconstruction
In this paper, we propose a sub-terahertz PAM4 modulator based on transmission characteristic reconstruction by combining meta-unit, GaAs Schottky diode, and fan branch lines. This method combined the...
Stable magnetocaloric effect over an ultrawide temperature range of 146–320 K via hydrostatic pressure in kagome magnets
Solid-state refrigeration leveraging the magnetocaloric effect (MCE) presents a sustainable and energy-efficient alternative to traditional gas compression refrigeration technologies. However, the pra...
Investigation of the 4<i>f</i>146<i>s</i>2 1<i>S</i>0−4<i>f</i>135<i>d</i>6<i>s</i>2 (<i>J</i> <b>=</b> 2) clock transition at 431 nm of 171Yb atoms trapped in an optical lattice
With the aid of an optical frequency divider based on an optical frequency comb, the frequency of a laser at 431 nm is divided from a cavity-stabilized laser at 578 nm. Using the frequency-stabilized...