Applied Physics Letters
Articles in this Issue
Segregation-induced co-passivation effect of S and Cl on CdTe grain boundaries
The efficiency of polycrystalline CdTe solar cells can be significantly enhanced through CdCl2 treatment. However, while this treatment promotes the diffusion of sulfur (S) into CdTe, the improvement...
Strong out-of-plane piezoelectric properties in Janus PdXY (X, Y = O, S, Se, Te; X ≠ Y) monolayers: A first-principles study
The development of piezoelectric materials is limited by incomplete internal mechanisms and a lack of vertical piezoelectricity. This study introduces Janus PdXY (X, Y= O, S, Se, Te; X ≠ Y) monolayers...
Direct laser writing of planar and stretchable supercapacitors based on a graphene oxide and manganese dioxide nanoparticle composite on a paper substrate
Paper-based supercapacitors (P-SCs) exhibit superior electrochemical performance owing to the flexibility and unique surface properties of paper substrates. Currently, most P-SCs adopt a sandwich stru...
Origin of oxygen partial pressure-dependent conductivity in SrTiO3
SrTiO3 (STO) displays a broad spectrum of physical properties, including superconductivity, ferroelectricity, and photoconductivity, making it a standout semiconductor material. Despite extensive rese...
Heat-powered IoT node: A synergistic fusion of thermoacoustic engine and triboelectric nanogenerator
This study presents the design and analysis of a thermal energy harvester that integrates a thermoacoustic engine (TAE) with a honeycomb-structured triboelectric nanogenerator (H-TENG), referred to as...
Publisher's Note: “Extremely weak sub-kelvin electron–phonon coupling in InAs on Insulator” [Appl. Phys. Lett. <b>125</b> , 202601 (2024)]
Indium alloying in <b> <i>ε</i> </b>-Ga2O3 for polarization and interfacial charge tuning
Density functional theory was utilized to assess the influence of In alloying on the spontaneous (Psp) and piezoelectric (Ppe) polarization of ε-Ga2O3 heterostructures with In concentrations ranging f...
Doping-induced enhancement of Curie temperature in Zn2Ru1−<i>x</i>A<i>x</i>Mn (A = Ti, Mn, Co, Zr, and Rh) Heusler alloys: An <i>ab initio</i> investigation
This study examines the structural stability, electronic, and magnetic properties of off-stoichiometric Zn2Ru1−xAxMn Heusler alloys (with, A = Ti, Mn, Co, Zr, and Rh) using first-principles calculatio...
Low voltage and high bandwidth surface-illuminated three-terminal Ge-on-Si APD with multiple biasing configurations
In this work, a regulated-voltage biasing configuration is proposed for the Ge-on-Si avalanche photodiode (APD) structure. This design incorporates an extended n-charge layer to decrease the breakdown...
Determination of microwave material properties at cryogenic temperatures
Quantum information processing systems rely on cryogenic microwave electronics, and printed circuit board (PCB) laminates play an essential role, including integrating quantum chips and connecting mic...
A phononic crystal waveguide using surface waves below the sound cone
Surface acoustic waves are commonly used in a variety of radio-frequency electrical devices as a result of their operation at high frequencies and robust nature. For devices based on Rayleigh-like pla...
Shared-aperture full-duplex Janus meta-lens for asymmetric focusing of electromagnetic waves
Janus metasurfaces have provided a platform for multiplexing diverse electromagnetic (EM) wave functionalities, which are determined by the intrinsic propagation direction of the EM wave. However, mos...
Recent progress on quantum Hall effect in unconventional material systems
The quantum Hall effect (QHE) is an elegant macroscopic manifestation of quantum mechanical behavior on the microscopic scale, and its discovery is a major triumph in condensed matter physics. While Q...
Highly sensitive UV detector based on the transverse Dember effect of 4H-SiC single crystal
In this work, voltage-mode passive ultraviolet (UV) detectors have been designed and fabricated based on the transverse Dember effect of c-axis tilted n-type 4H-SiC single crystals, which may solve th...
Quantum secure direct communication based on quantum error correction code
Quantum secure direct communication (QSDC) enables the message sender to directly transmit messages to the message receiver through quantum channel without keys. Environmental noise is the main obstac...
The band structure and carrier recombination mechanism of α/β-phase tellurium homojunction investigated by infrared photoluminescence
During the synthesis of tellurium (Te) crystals, the coexistence of multiple crystalline phases (α-Te, β-Te, and γ-Te) with diverse structures commonly occurs, leading to instability and complexity in...
Realization of p-type MA-based perovskite solar cells based on exposure of the (002) facet
The crystallographic orientation of perovskite crystals significantly influences their photoelectric performance and associated photovoltaic devices. The classic perovskite (MAPbI3) films based on sol...
Defect-mediated electron–phonon coupling in halide double perovskite
Optically active defects often play a crucial role in governing the light emission as well as the electronic properties of materials. Moreover, defect-mediated states in the midgap region can trap ele...
Dynamic manipulation of ultrasonic beams by coding Moiré metasurfaces
Dynamic acoustic beam manipulation via tunable acoustic metasurfaces (AMs) has attracted significant attention. However, most current tunable AMs are primarily designed for airborne sound, feature com...
Observation of a two-dimensional topological metal in acoustic metamaterials
A two-dimensional topological metal with anti-helical-like edge states has been predicted recently but has not been confirmed experimentally. In this paper, we report an experimental realization of th...
Strain manipulation of spin-polarized topological phase in WSe2/CrI3 heterostructure
Here, based on first-principles calculations and topological analysis, we show that the spin-polarized topological phase is present in a van der Waals (vdW) heterostructure WSe2/CrI3. We reveal that m...
An innovative 3D-NAND design based on light-emitting cell for high reliability and low power consumption
The advancements in 3D-NAND technology have significantly increased the number of vertically stacked cells, which are controlled via word lines (WLs), enabling higher cell density and reducing costs....
Uniaxial magnetic anisotropy and weak phonon–spin coupling of a single Ni atom bonded to iridium-doped graphene
We investigate the magnetism and vibrational mode of a single Ni atom bonded to iridium-doped graphene. It is found that the Ni atom exhibits a large magnetic anisotropy energy of 53 meV, and the magn...
Write error reduction in magnetic tunnel junctions for voltage-controlled magnetoresistive random access memory by using exchange coupled free layer
Voltage-controlled magnetoresistive random access memory (VC-MRAM) is an emerging nonvolatile memory based on the voltage-controlled magnetic anisotropy (VCMA) effect. It has been garnering considerab...
Neuromorphic synaptic applications of oxygen-deficient BaSnO3 thin films
Cubic barium stannate (BaSnO3) has emerged as a promising platform for optoelectronic devices due to its remarkable room-temperature electron mobility, high transparency, excellent thermal stability,...