Applied Physics Letters
Articles in this Issue
TiSOH monolayer: A ferromagnetic semiconductor with multiple topological properties
Two-dimensional (2D) Janus ferromagnetic (FM) materials have recently attracted considerable interest due to their intriguing properties. Their structural asymmetry and the resulting electronic struct...
Petroleum coke-derived porous carbon encapsulating phase change materials for solar-thermal-electricity output
Solar energy utilization is hindered by intermittency, highlighting the urgency of advanced thermal energy storage technologies. Phase change materials (PCMs) are promising candidates but suffer from...
Controllable intrinsic defect-induced electronic structure modulation in few-layer pentagonal PdPS
Palladium phosphide sulfide (PdPS), a two-dimensional (2D) semiconductor with a unique Cairo pentagonal lattice, shows great potential for optoelectronic and thermoelectric applications. However, its...
Solution-processed epitaxial PdRhO2 metallic films as Schottky electrodes
Metallic delafossite PdRhO2 thin films were synthesized using a low-rhodium solution deposition strategy, achieving epitaxial growth despite a significant lattice mismatch. Comparative structural and...
Universal Ohmic contacts to <b> <i>β</i> </b> -Ga2O3 using interfacial dipoles of ultra-thin MgF2 layer and related defect passivation
We report on the role of MgF2 as an interfacial buffer layer to achieve universal Ohmic contact on polycrystalline β-Ga2O3 thin film. Polycrystalline Ga2O3 thin films were deposited using RF magnetron...
Cu2+-facilitated formation of Mn2+–Mn2+ dimers inducing redshift of Mn2+ emission in Co-doped perovskite nanocrystals
Transition metal doping in perovskite nanocrystals is an important means to regulate their photophysical properties. In particular, the underlying concentration effect and optical process deserve furt...
Single-frequency Raman vortex beam enabled by a frequency-locked off-axis diamond cavity
Benefiting from the excellent optothermal properties of diamond crystals and the absence of spatial hole burning effects in stimulated Raman scattering, diamond Raman lasers hold significant advantage...
Pressure-dependent photoluminescence study of band structure in germanium
Germanium (Ge) has long been regarded as a promising laser material for silicon photonics due to its quasi-direct bandgap to make up for the deficiency of indirect bandgap silicon, but its energy band...
Quantum structure for efficient p-doping of AlGaN with Al content over 70%
The low p-doping efficiency of AlGaN due to its high activation energy limits the advancement of deep ultraviolet optoelectronics. The quantum engineering method has provided a new insight to address...
Negative in-plane Poisson's ratio in [001]-textured PMN-PZT ceramics
[001]-textured 0.4P(Mg1/3Nb2/3)O3-0.25PbZrO3-0.35PbTiO3 (PMN-PZT) ceramics were fabricated by templated grain growth using 3 vol. % BaTiO3. Full matrices of dielectric (εij), elastic (sij, cij), and p...
Red micro-LEDs on glass substrates for ultrahigh-luminance (&gt;105 nits) transparent displays
AlGaInP-based red micro-light-emitting diodes (micro-LEDs) with lateral dimensions of 28 × 52 µm2 were fabricated on transparent glass substrates via solder bonding for high-performance transparent di...
Spin wave interference-based efficient neuromorphic computing
We demonstrate the design of a neuromorphic hardware, spin wave interference device (SWID), utilizing micromagnetic simulations, for performing feature extraction and classification of binary digit pa...
Coherent transport in strongly correlated perovskite-manganite quantum wells
Perovskite transition metal oxides (TMOs) are hallmark systems for studying electron correlations, with strong Coulomb interactions reaching the electron volt scale. Such interactions generally hinder...
Twist angle control of charge density wave transitions in 1T–TaS2 homostructures
Twisted homostructures provide a versatile platform to engineer interlayer coupling and collective orders via moiré superlattices. While the effectiveness of the moiré potential in modulating charge d...
Temperature-dependent wake-up phenomena in AlScN ferrodiode memory devices
Ferroelectric aluminum scandium nitride (AlScN) is a promising material for use in nonvolatile digital memory operating at temperatures well above the limits of current commercial technology. Ferrodio...
Pressure-induced polar–nonpolar–polar phase conversion in Na0.5Bi0.5TiO3
Na0.5Bi0.5TiO3 (NBT) is a promising lead-free ferroelectric material and has a unique A-site substitution structure with rhombohedral (R3c) symmetry at ambient conditions. Combining in situ polarizati...
Atomistic nonequilibrium Green's function study of radiation-induced charge loss in floating gate flash memories
This study presents an atomistic nonequilibrium Green's function (NEGF) approach for modeling radiation-induced charge loss in floating-gate flash memories, which become increasingly vulnerable to rad...
Magnetic particle optical imaging method based on magnetic linear dichroism effect
Magnetic particle imaging (MPI) has attracted considerable attention in recent years because it can achieve functional imaging of magnetic nanoparticles (MNPs) within biological tissues. Developing ef...
Modulation of interfacial Schottky barrier of In2Se3/Ti3C2X2 (X <b>=</b> Cl; F; O; OH) ferroelectric heterostructure
Reducing the interface barrier between metals and semiconductors is crucial for designing high-performance optoelectronic devices based on van der Waals heterostructures. In this study, the van der Wa...
Single-sided non-collinear shear wave mixing for material characterization
This Letter develops a single-sided non-collinear shear wave mixing technique for material characterization based on the phase-matching interface condition. Analytical modeling reveals that the interf...
Room-temperature continuous-wave lasing at 318 nm on a relaxed AlGaN template grown on a sapphire substrate
Continuous-wave (CW) lasing at 318 nm is achieved at 20 °C from an ultraviolet B (UVB) laser diode grown on a relaxed AlGaN template atop a sapphire substrate. The device incorporates a refractive ind...
Ultrafast atomic dimerization of Peierls distortion in semimetal molybdenum ditelluride
Semimetal molybdenum ditelluride (1T′-MoTe2) possesses diverse phase transitions, enriching its application prospects. The structural response during these transitions is crucial to understanding the...
Shallow trap dynamics and non-thermal spectral shift in sub-10- <i>μ</i> m InGaN micro-LEDs
Miniaturized InGaN micro-light-emitting diodes suffer reliability drifts that are not fully captured by conventional optical/electrical reporting. This study shows that, after 500-h direct current (DC...
Second-harmonic vortex beam generation via parallel continuous-wave all-optical domain structuring
We report the generation of second-harmonic vortex beams using nonlinear pitchfork holograms directly induced via a parallel all-optical domain structuring technique in lithium niobate. The method emp...
Electric field dependence of nanoscale cathodoluminescence inside Cr doped β-Ga2O3 interfaces
Chromium (Cr) is a common impurity in β-Ga2O3 crystals, where its characteristic R1 and R2 luminescence lines are susceptible to both the host crystal field and externally applied fields. In this work...