Applied Physics Letters
Articles in this Issue
Modifications in the charge trap landscape in Hf0.5Zr0.5O2 as a function of oxygen vacancy concentration observed with photoemission electron microscopy
Oxygen vacancies in HfxZr(1−x)O2 (HZO) both contribute to stabilization of the ferroelectric orthorhombic phase and promote leakage pathways that limit the endurance of devices based on the material....
Inter-frequency all-optical transfer of structured light information in Rb vapor based on spatial cross-phase modulation
High-dimensional all-optical information transfer facilitates large-capacity, high-speed, and energy-efficient optical communication, playing a pivotal role in advancing modern photonic technologies....
Schottky barrier formation and band realignment of rare-earth tritelluride charge density wave material–semiconductor interfaces
We investigated the formation of Schottky barriers at the interface between rare-earth tritelluride (RTe3) crystals and n-type silicon (n-Si) substrates. This study explores the rectifying characteris...
Magnetic field induced arrested state in TbMn6Sn6
The quasi-two-dimensional kagome ferrimagnet TbMn6Sn6 is investigated for thermo-remanent magnetization and Hall effects. Upon cooling under a moderate magnetic field, the sample attains a magnetizati...
Increase fixed charge at Al2O3/Ga2O3 interface for high-performance Ga2O3 trench Schottky barrier diodes by atomic nitrogen treatment
We demonstrate a significant improvement in the breakdown voltage of vertical β-Ga2O3 metal-insulator-semiconductor (MIS) trench Schottky barrier diodes (TSBDs) through atomic nitrogen treatment at th...
Universal polarization control with metasurfaces
Polarization is one of the fundamental properties of electromagnetic waves, and polarization devices based on metasurfaces have a wide range of potential applications in detection, communication, and...
Glassy thermal conductivity in halide perovskites: The role of chemical bonding inhomogeneity and lone pair electrons
Fundamental understanding of the interplay between chemical bonding, lattice dynamics, and phonon transport is crucial for thermoelectric applications, and the desire for thermally insulating crystall...
Condensation of exciton polaritons in a flatband of a deformed triangle lattice at room temperature
Flatbands in the periodic electronic or photonic structures attract intensive attention due to their infinite effective mass, which leads to plenty of physical phenomena, for example, the localization...
Influence of carrier localization on terahertz conductivity in Weyl semimetal Mn3Sn thin films
The topological semimetal Mn3Sn, known for its strong electronic correlation characteristics, is of significant importance for research into its optoelectronic properties within the terahertz (THz) fr...
Two-photon absorption and nonlinear refraction of AlN from ultraviolet to near-infrared
We report a detailed characterization of the wavelength dependency of two-photon absorption coefficient β and Kerr nonlinearity n2 in aluminum nitride (AlN) single crystal over a spectral range from 3...
A dielectric material, Zr0.10Ta0.90O2.45, with a noncentrosymmetric L-Ta2O5-related structure
A dielectric material with a noncentrosymmetric L-Ta2O5-related structure, Zr0.10Ta0.90O2.45, was synthesized through a solid-state reaction using Ta2O5 and ZrO2 powders, followed by a 1700 °C heat tr...
Evidence of Tomonaga–Luttinger liquid at the folding edge of graphene
Searching for systems in which electronic interactions dominate microscopic quantum behaviors is highly desired in condensed matter physics. Here, we provide spectroscopic evidence for the Tomonaga–Lu...
Design of surface acoustic wave resonators based on a series neural network
The surface acoustic wave (SAW) filter is widely applied in mobile communication, and the resonator is its main component. However, the traditional simulation and design methods of resonators often re...
Stabilization of III-nitrides at high temperatures using nitrogen plasma
III-Nitride materials such as gallium nitride (GaN) and indium nitride (InN) are critical for applications in electronics and optoelectronics due to their exceptional properties. However, their high-t...
Thermal transport properties of ultra-high-temperature ceramic superlattices
The superlattice (SL) structure, which can efficiently suppress phonon thermal transport, has important implications for materials design in thermal insulating and thermoelectric applications. In this...
(KCo)3<b>+</b> co-substitution and enhancement of negative thermal expansion in (KCo)<i>x</i>Sc2-<i>x</i>Mo3O12 ceramics
Negative thermal expansion (NTE) materials shrink in volume when heated, which show abnormal thermal expansion property. Sc2Mo3O12 is a typical NTE material, but its high synthesis cost, low density,...
Single-shot all-optical magnetization switching in in-plane magnetized magnetic tunnel junction
Single pulse All Optical Helicity-Independent Switching is demonstrated in an in-plane magnetized magnetic tunnel junction. A toggle switching of the 2 nm thick Co40Fe40B20 soft layer could be achieve...
Germanium target sensed by phonon-mediated kinetic inductance detectors
Cryogenic phonon detectors are adopted in experiments searching for dark matter interactions or coherent elastic neutrino-nucleus scattering, thanks to the low energy threshold they can achieve. The p...
Significant improvement of breakdown voltage of Al0.86Ga0.14N Schottky barrier diodes by atomic layer etching
Surface defects in Al-rich AlGaN Schottky barrier diodes (SBDs) contribute to high reverse leakage currents, which limit breakdown voltage—a critical parameter for power applications. In this study, a...
Prominent nonreciprocity in metasurfaces supported by dielectric-coated Weyl semimetal substrates
Magnetless nonreciprocal radiation in the structures consisting of Weyl semimetal attracted much attention in modern photonics, and the major issue in this research direction is to achieve strong nonr...
Enhancing large effective spin-torque efficiency in MnRh by magnetic phase transition
We have experimentally confirmed the large enhancement of effective efficiency in charge-spin conversion through paramagnetic–antiferromagnetic phase transition in a MnRh film. Direct current-tuned sp...
Strain-enhanced luminescence from biaxially strained Ge light-emitting diodes on GeOI substrates
Due to the lack of efficient light sources compatible with complementary metal oxide semiconductor technology, the development of silicon-based photonic integrated circuits has been restricted. German...
Nonvolatile multistate magnetoresistance in all-van der Waals antiferromagnet-based spin valves
Antiferromagnets are gaining increasing significance in spintronics due to their advantageous properties, such as picosecond spin dynamics and negligible stray fields. However, their practical applica...
Enhanced antiferromagnet-induced perpendicular magnetic anisotropy by Bi atomic layer with high spin–orbit coupling
Antiferromagnetic (AFM) thin films have emerged as promising candidates for inducing perpendicular magnetic anisotropy (PMA) in adjacent ferromagnetic (FM) layers. In this work, we demonstrate that ca...
Infrared polarization multiplexing meta-holography based on a dual-polarization channels meta-pixel
Optics metasurfaces have been utilized for research into computer-generated holography imaging and encryption due to their exceptional ability to manipulate fundamental properties of light waves, incl...