Applied Physics Letters
Articles in this Issue
High-performance nanostructured uncooled MWIR PbSe photodetectors enabled by low-damage O+ ion implantation
Uncooled mid-wave infrared (MWIR) photodetectors are an important development direction for next-generation infrared technology. However, due to the narrow bandgap and thermal noise, MWIR photo-detect...
Structural coloration for photovoltaics via sub-monolayer disordered Mie resonators
Building-integrated photovoltaics (BIPV) are currently hindered by the esthetic trade-off between power conversion efficiency and visual appeal. Conventional colorization methods generally fall into t...
Complex permittivity of gallium arsenide and sapphire to 220 GHz
Despite the industrial relevance of sapphire and gallium arsenide (GaAs) for electronic applications, there are few reports on the value of complex permittivity and dielectric loss at frequencies abov...
High Schottky barrier formation in tilted-dipole PdCoO2/ <b> <i>β</i> </b> -Ga2O3 (001) interfaces
We report the growth and Schottky junction characteristics of metallic delafossite PdCoO2/β-Ga2O3 (001) heterostructures. The PdCoO2 thin films predominantly grow with the epitaxial relationship of Pd...
A three-dimensional multimode lumped-element resonator for collective spin manipulation and dispersive readout
We report a three-dimensional lumped-element multimode microwave resonator that enables homogeneous collective manipulation and dispersive readout of a macroscopic spin ensemble. By exploiting geometr...
Liquid structure dependence of rapid crystallization dynamics for rare-earth terbium
Unveiling the phase transformation mechanism for liquid rare-earth metals has been a great challenge, especially at the metastable undercooled state. Here, the liquid structure dependence of the cryst...
Measurement of cross-correlated charge noise spectrum from transport currents through series-coupled silicon quantum dots
Cross-correlated charge noise in silicon quantum dots has emerged as an important issue for fault-tolerant quantum computation, as it has been suggested to both limit quantum error correction performa...
Interlayer-dependent dual-mode response in OLED–UV photodetectors based on hybridized local and charge-transfer emitters
Dual-mode organic devices that combine organic light-emitting diodes (OLEDs) with reverse-bias ultraviolet organic photodetectors (UVOPDs) must improve emissive efficiency without unduly compromising...
Cryogenic enhancement of phononic four-wave mixing in AlScN/SiC
Surface acoustic wave platforms based on piezoelectric thin-film heterostructures provide sub-wavelength acoustic confinement, making them attractive for compact nonlinear phononic systems with applic...
Erratum: “Enhancement of spin-flop-induced magnetic hysteresis in van der Waals magnet (Fe1− <i>x</i> Co <i>x</i> )5GeTe2” [Appl. Phys. Lett. <b>122</b> , 152402 (2023)]
Experimental determination of nanoscale thermal transport properties in heat-assisted magnetic recording media using step-by-step time-domain thermoreflectance method
Heat-assisted magnetic recording (HAMR) enables ultra-high areal density by locally heating magnetic recording media with high magnetic anisotropy, but the writing performance critically depends on th...
Preferential enhancement of high-rate performance in LiNi0.5Mn1.5O4 cathodes via improved ion transport kinetics and structural stability
Spinel LiNi0.5Mn1.5O4 (LNMO) cathodes offer significant potential for grid-scale energy storage, combining the merits of low cost and a high voltage plateau (∼4.7 V vs Li+/Li). However, they still suf...
Stimulation of surface ionization waves by pulsed laser irradiation
The inclusion of a semiconducting material within a composite barrier enables the uniform propagation of surface ionization waves (SIWs) in air at atmospheric pressure regardless of the polarity of th...
Variable wavefronts of light beam caused by phase-polarization electro-optic modulation of BaTiO3 crystal thin-film waveguide
This work investigates the characteristics of a birefringence electro-optic (EO) modulator based on a c-axis barium titanate (BaTiO3) crystal film rib waveguide and a pair of electrodes embedded in th...
Orthogonally polarized switchable ultrafast fiber laser using long-period grating
We demonstrate an orthogonally polarized switchable nonlinear polarization rotation (NPR) mode-locked fiber laser using a long-period grating (LPG). The LPG is inscribed in a single-mode fiber using a...
Blocking electron current in p-type SnO thin-film transistors to achieve compatibility with 385 <b>°</b> C back-end-of-line thermal budgets
Oxide thin-film transistors (TFTs) have shown great promise for monolithic 3D integration with silicon chips through back-end-of-line (BEOL) processes. While BEOL processing involves high-temperature...
Self-referenced terahertz time-domain ATR spectroscopy of solutions
Terahertz spectroscopy and imaging have emerged as sophisticated, nondestructive tools for material analysis in physical and biomedical sciences, owing to their sensitivity to molecular vibrations. Ho...
All biogenic phosphors: Albumen, chlorophylls, silk fibroin toward biohybrid white light-emitting diodes
White light-emitting diodes (WLEDs) integrating natural luminophores into hybrid architectures provide promising strategies for sustainable and stable lighting solutions. However, their fundamental em...
Wavelength- and intensity-tunable self-powered bipolar photodetectors based on a-Ga2O3 heterostructures for encrypted communication
Bipolar photodetectors are promising for optical logic and communication but often suffer from structural complexity and high power consumption. Here, we report a self-powered, vertical photodetector...
Atomic and electronic structures of natural and artificial rutile TiO2 grain boundaries
Grain boundaries (GBs) significantly influence the properties and applications of materials. Due to the advantages associated with GB design and structural characterization, artificial bicrystal GBs a...
Efficient photothermoelectric detection by layered Bi2 <b>+</b> 2 <i>n</i> O2 <b>+</b> 2 <i>n</i> Se <i>n</i> Cl2 superlattices with ultralow thermal conductivity
Photothermoelectric (PTE) detection, consisting of photothermal and thermoelectric conversion processes, is a promising self-powered strategy for room-temperature optoelectronic sensing. However, a fu...
Fourier magnetic imaging of nitrogen-vacancy center with sub-nanometer pixel resolution
Solid-state spins in diamond are promising building blocks for quantum computing and quantum sensing, both of which require precise nanoscale addressing of individual spins. To explore the resolution...
Tunable ionic and photonic kinetics in InGaCdO broadband optoelectronic synapses for multimodal perception
Biological neural systems achieve multidimensional coupling of perception, memory, and processing through hierarchical information-integration mechanisms, enabling remarkably energy-efficient multimod...
Anomalous thermal expansion and magnetic critical behavior in ErFe12− <i>x</i> Ti <i>x</i>
Rare-earth-transition-metal compounds with a ThMn12-type structure exhibit high Curie temperature (TC), large saturation magnetization, and tunable magnetic anisotropy, making them promising for perma...
Extended depth of focus for optical coherence tomography based on the versatile diffractive optical element
Optical coherence tomography (OCT) faces a fundamental trade-off between transverse resolution and depth of focus (DOF). While diffractive optical elements (DOEs) have been utilized to extend the DOF,...