Applied Physics Letters
Articles in this Issue
Investigation on all-inorganic perovskite betavoltaic batteries based on MWCNT electrodes
Perovskite materials have been extensively studied in the field of solar cells, and inorganic perovskites, with their good environmental and radiation stability, high defect tolerance, and high carrie...
Stimuli-responsive luminescence in doped inorganic crystals
Inorganic crystals doped with luminescent ions have attracted considerable interest due to their abundant luminescence spectra. Particularly, these luminescent materials can show highly variable lumin...
Ionization effects in single-shot carrier-envelope phase detection with gas-gap devices
The carrier-envelope phase (CEP) is a key parameter for attosecond waveform control of ultrashort laser pulses. For laser systems with high repetition rates, however, single-shot CEP detection is stil...
Impact of quantum well thickness on efficiency loss in InGaN/GaN LEDs: Challenges for thin-well designs
We investigate the impact of quantum well (QW) thickness on efficiency loss in c-plane InGaN/GaN LEDs using a small-signal electroluminescence technique. Multiple mechanisms related to efficiency loss...
Surface photosensitization enabled by embedded plasmonic nanoparticles in ferroelectric crystals for laser-induced periodic surface structures
Dielectric crystals, despite their rich optical properties and great potential in integrated optoelectronics, had generally fallen behind the competing photonic platforms, mainly due to the significan...
Generation of high and bidirectional out-of-plane spin–orbit torque through vertical magnetization gradient
High efficiency and out-of-plane spin–orbit torque (OOP-SOT) driven magnetization switching is essential for developing spin-based memory and logic devices. In this study, we report the generation of...
Dual-gradient multilayer ultra-microperforated panel composite for ultra-broadband and quasi-perfect sound absorption
This study proposes and experimentally validates a multilayer composite acoustic absorber based on ultra-microperforated panels with a dual-gradient configuration, incorporating decreasing pore diamet...
Porous W2N fibrous nanograins and TiN nanopyramid framework for high-energy density flexible asymmetric supercapacitors
Enhancing the energy density of flexible asymmetric supercapacitors (ASCs) necessitates developing and implementing high-performance anode materials for technological developments in wearable energy s...
Coexistence of intrinsic magnetic topological state and spin-polarized nontrivial flatband in the honeycomb-kagome monolayers <i>X</i>2Rb3 (<i>X</i>=Cr, Mo, W)
Magnetic materials featuring topology and flatband in their electronic structure bridge the topological quantum physics and strongly correlated many-body physics, but materials that manifest this feat...
Nonlinear response of microwave impedance microscopy
Microwave impedance microscopy (MIM) is an emerging scanning probe technique that allows non-contact measurement of local linear complex permittivity with nanometer spatial resolution. In this work, w...
Enhancing spin–orbit torque in tri-layer devices with an ultra-thin light metal spacer
The discovery of spin current generation through an additional ferromagnetic layer has unlocked new possibilities for spin–orbit torque (SOT) devices, particularly in tri-layer SOT configurations. Thi...
Avian eye-inspired tetrachromatic-bidirectional synaptic transistor for multi-spectral recognition
The spectral recognition is key for efficient machine vision to obtain high imaging quality of color target objects. However, the bidirectional response within a single band of vision sensors is still...
Observation of chiral edge state pairs in an acoustic trimer waveguide
Here, we experimentally investigate the topological state properties in an acoustic trimer waveguide akin to the extended Su–Schrieffer–Heeger model. By integrating a mirror symmetry into the structur...
Performance of 3 cm3 ion trap vacuum package sealed for 10 years
Miniature atomic clocks based on the interrogation of the ground state hyperfine splitting of buffer gas cooled ions confined in radio frequency Paul traps have shown great promise as high precision p...
A temperature-insensitive nonlinear silicon bulk acoustic oscillator
We demonstrate a temperature-stable oscillator based on frequency Duffing in a degenerately doped silicon bulk acoustic wave resonator, transduced by a thin aluminum scandium nitride (AlScN) layer. Th...
Tunable layer-locked valley Hall effect in ferroelectric-magnetic-valley coupled breathing Kagome bilayer W3Br8
Based on an effective k·p model, we form breathing Kagome bilayers with two different interlayer antiferroelectric (AFE) couplings, i.e., tail to tail and head to head, to study their magnetic and val...
Sputtered tantalum oxynitride electron-selective contact for silicon solar cells
Wide bandgap metal compound-based carrier-selective contacts have been intensively investigated for crystalline silicon (c-Si) solar cells. In this work, we develop the electron-selective contact tant...
Investigation of plasma etch damage in GaN on commercially available substrates by Raman spectroscopy
In this work, we evaluate the quality of a commercially available GaN/AlGaN structure grown on Qromis Substrate Technology using Raman spectroscopy. Using the shift of the E2H peak, we calculated that...
Phase-locked single pixel imaging
Single-pixel imaging, which is recognized for its high sensitivity and wide spectral range, has a great potential for development in many fields. However, noise from ambient light and detector poses g...
Publisher's Note: “Wafer-scale CMOS-compatible graphene Josephson field-effect transistors” [Appl. Phys. Lett. <b>125</b> , 012602 (2024)]
Dynamic magnetoelectric effect of the polar magnet CaBaCo4O7
We have investigated the temperature and magnetic field dependence of the dynamic magnetoelectric coefficient αE of the polar magnet CaBaCo4O7. The temperature dependence of αE exhibits a peak at the...
RF-sputtered Al-doped ZnO-based transparent electrochemical capacitors developed as a structural energy storage to replace double-glazed window for a smart building
Structural energy storage combines energy storage with structural strength, reducing weight, saving space, and improving efficiency. Among various types, transparent structural energy storage shows st...
Tunable magneto-optical Kerr effect in two-dimensional non-collinear antiferromagnetic material HfFeCl6
With the development of two-dimensional (2D) magnetic materials, the magneto-optical Kerr effect (MOKE) is widely used to measure ferromagnetism in 2D systems. Although this effect is usually inactive...
The influence of contact resistance and interface layers in extraordinary magnetoresistance devices
The electrical resistance change of a device when subjected to applied magnetic fields is essential for magnetoresistive magnetometers as well as for studying fundamental transport phenomena in conden...
Monitoring thermal evolutions of 2D layered semiconductor/polymer heterostructure with ultrafast photoacoustic spectroscopy
Utilizing 2D layered semiconductor as ultrafast photoacoustic transducer, we all-optically generate and track the propagation of picosecond acoustic pulses in 2D layered semiconductor/PMMA thin-film h...