Applied Physics Letters
Articles in this Issue
Surface-enhanced Raman scattering on two-dimensional Nb2CTX MXene
MXenes have garnered significant attention for surface-enhanced Raman scattering (SERS) applications due to their exceptional electronic properties and remarkable hydrophilicity. However, niobium carb...
Experimental demonstrations of Josephson threshold detectors for broadband microwave photons detection
In this Letter, we experimentally demonstrated that Josephson threshold detectors (JTDs) could be developed to implement the sensitive detection of broadband microwave photons. Beginning with the nume...
Machine learning coupled highly sensitive and robust polyvinylidene fluoride thin-film sensor for wearable motion recognition
Emerging applications in the field of health monitoring and exoskeleton robotics have led to an urgent demand for high-performance body motion recognition. However, the available motion recognition sy...
Modal gain tailoring by flat stamping of thin colloidal films
Post-synthetic tailoring and improvement of the light-emitting material properties is an important direction for optimization of solution processible LEDs and recently emerged laser diodes based on na...
Time-domain modeling of nonlinear counter-propagating wave dynamics in reflective microring resonators
We present a one-dimensional finite-difference time-domain model that analyzes nonlinear counter-propagating wave dynamics in reflective microring resonators for integrated microcomb generation. The p...
High thermoelectric performance of monolayer Janus Zn<i>AX</i>Te (A = Ge, Sn; X = S, Se) induced by large band degeneracy and low lattice thermal conductivity
Thermoelectric conversion is a crucial approach to addressing waste heat utilization and energy challenges in the 21st century. Enhancing the thermoelectric figure of merit (ZT) has become a central f...
Impact of qubit anharmonicity on near-resonant Rabi oscillations
Precise quantum control relies on a deep understanding of the dynamics of quantum systems under external drives. This study investigates the impact of anharmonicity on qubit dynamics under conditions...
Utilization of silicon optical coatings for transverse-mode suppression in high-power oxide-confined vertical-cavity surface-emitting lasers
Engineering of the electric-field standing-wave pattern of oxide-confined vertical-cavity surface-emitting lasers (VCSELs) via a scalable, high-refractive-index silicon optical coating is demonstrated...
Combining the magnetocaloric effect and barocaloric effect in low-cost Mn0.43−xNi0.77+xFe0.8Si intermetallics with broad refrigeration temperature region
Solid-state refrigeration utilizing the caloric effects has been envisioned as an effective and environmentally friendly technology. In this work, we report low-cost Mn0.43−xNi0.77+xFe0.8Si (x = 0, 0....
Annealing effects on crystalline quality and device performance of ultrawide bandgap h-BN quasi-bulk crystals
Hexagonal boron nitride (h-BN) is a notable member of ultrawide bandgap semiconductors, distinguished by its unique layered crystalline structure and exceptional electrical and optical properties. One...
AlN-based polarization-doped field-effect transistors with downward-graded AlGaN underlayers
We propose AlN-based polarization-doped field-effect transistors (PolFETs) with upward-graded AlxGa1−xN channel layers combined with downward-graded AlGaN underlayers (ULs). In a structure where the c...
Spin-torque ferromagnetic resonance for complex signal extraction with tunable linewidth
The signal of spin-torque ferromagnetic resonance (ST-FMR) primarily consists of microwave absorption resonance in the ferromagnetic layer and spin–orbit torque (SOT) absorption resonance, with SOT ef...
Multi-band wavefront attenuation leveraging temporal modulation of metasurface via reconfigurable and scalable design
Practical realization of multi-band resonant piezoelectric metasurfaces remains challenging, conventionally requiring graded subunits, multi-branch circuitry, digital switching, or active control. As...
Toward heralded single-photon storage via chiral cavity-enhanced spontaneous Raman scattering
We propose a scheme of heralded storages of single photons via spontaneous Raman scattering (SRS) enhanced by a chiral standing-wave cavity, which creates a non-classically correlated pair of a spin w...
Reconfigurable multifunctional acoustic metagratings enabled by local phase harnessing
Metasurfaces and metagratings show significant potential in revolutionizing acoustic devices, with applications spanning areas such as structural health monitoring and communication. Nevertheless, mos...
Impact of oxygen vacancy-gradient surface layer on the electrostrain of Sb3+ doped BNKST ceramics
Recently, ultra-large electrostrain exceeding 1% has been observed in various thin ferroelectric ceramics, generating a significant research interest. However, the underlying mechanisms remain controv...
Symmetry breaking induced nonrelativistic spin splitting and spontaneous valley polarization in altermagnetic Ca(CoN)2 bilayer
Two-dimensional altermagnet (AM) has attracted extensive attention due to its intriguing nonrelativistic spin-splitting combined with compensated magnetism. The manipulation of spin-splitting and vall...
Qubit properties of antisite defects in ZnSe
Antisite defects in ZnSe, ZnSe and SeZn in the neutral and +1 charge states, are found to possess some favorable attributes to be spin-based qubits. Systematic density functional theory calculations u...
<i>In situ</i> measurement of AlxGa1−xAs growth rate and composition by magnification inferred curvature method
The direct in situ measurement of group-III element growth rates in epitaxial methods has been a continuous pursuit. Despite the development of numerous in situ monitoring tools, the accurate measurem...
High hydrogen storage capacity and reversible storage/release mechanism of the BC2N monolayers via charge modulation
Although hydrogen is an effective alternative energy source to fossil fuels, its storage is a challenge for extensive applications. The hydrogen storage performance and mechanism of the BC2N monolayer...
Coexistence of superconductivity and topological phase in kagome metals CsTi3Te3X2 (X = Bi, Sb, Se, Sn): A first-principles investigation
The AV3Sb5-prototype (A = K, Rb, Cs) kagome materials have garnered significant research interest owing to their diverse properties. Most studies have primarily concentrated on the kagome layers, negl...
Demonstration of a GaN-based P-channel FinFET with high current density based on multi-channel structure
In this work, we report a p-GaN/u-GaN/AlGaN multi-channel structure using δ-doping. The multi-channel structure exhibits a low sheet resistance of 12.9 kΩ/sq. The AlGaN/GaN/AlGaN sandwich structure re...
VRP-LiDAR: A compact full-Stokes polarimetric LiDAR utilizing vortex retarders
Full-polarization light detection and ranging (LiDAR) is a powerful remote sensing technology that provides comprehensive information about object distance, material properties, surface texture, and o...
Unconventional temperature evolution of quantum oscillations in Sn-doped Bi1.1Sb0.9Te2S topological insulator
Among various topological insulators, Sn-doped Bi1.1Sb0.9Te2S stands out for its exceptional properties. It has a wide energy gap and typically exhibits a well-isolated Dirac point and a Fermi level p...
Optomechanical thermal effect of nanofilm by time-correlated single-photon counting
Optomechanical sensing enables non-contact measurement of vibrational noise in nanofilms. While the quantitative thermal response of nanofilms is not fully understood, we investigated the temperature-...