Applied Physics Letters
Articles in this Issue
Nitrogen vacancy modulated amorphization and photoluminescence in graphitic carbon nitride under pressure
The bandgap engineering in graphitic carbon nitride (g-C3N4) has attracted much attention in the aim to optimize its photoelectric properties. Amorphization shows potential advantages in modulating th...
On-demand high gain and directional surface wave antenna with 100° field of view based on grounded dielectric metasurface
We present a surface wave antenna based on a grounded dielectric metasurface-integrated Luneburg lens. This innovative design achieves a compact footprint, superior efficiency, and cost-effectiveness...
Sensitive strain effect on magnetic phase transitions in Sb-doped MnBi4Te7 magnetic topological insulator
Recent experiments have successfully fabricated ferromagnetic topological insulator MnBi4Te7 by Sb doping. However, distinct conclusions regarding magnetic phase transitions at different doping concen...
Adjusting Schottky barrier height and enhancing diode performances in 1T-MoT2/WSeTe (MoSeTe) heterojunctions by interlayer flipping
Two-dimensional (2D) Janus materials have received significant attention due to their unique physical structure and superior electronic and optical properties. Here, we investigate the diode performan...
Six-band strong nonreciprocal radiation at small angle of incidence 5.9° by toroidal cylinder arrays
Nonreciprocal thermal radiation overcomes Kirchhoff's law which requires spectral absorptivity to equal emissivity, establishing a distinct radiative heat transfer mechanism. However, among the previo...
Plasma-activated CNT nanofluid aerosols for spray-based surface bacterial inactivation
The recent pandemic has underscored the need for better ways for surface disinfection of pathogens. Given the effectiveness of both plasma-activated water and carbon nanotubes (CNTs) for bacterial ina...
UWBG ferroelectric ScAlN/AlGaN high-electron mobility transistor
We report on the demonstration of ferroelectric ScAlN/AlGaN high-electron mobility transistors (HEMTs). The device exhibited a maximum drain density, ID, of ∼16 mA/mm with excellent electrostatic cont...
Superresolution THz pulsed solid immersion microscopy
A reflection-mode THz pulsed solid immersion (SI) microscope is developed to combine the superresolution capabilities of SI optics and the advanced information content offered by THz pulsed imaging. I...
Deformation and motion of skyrmion bags driven by surface acoustic wave
Skyrmion bags are stable spin textured topologies with arbitrary topological charges, and have the potential to become new carriers in racetrack memory. After the discovery of skyrmion bags, the injec...
Synthetic π-flux system in 2D superconducting qubit array with tunable coupling
Flat-band systems provide an ideal platform for exploring exotic quantum phenomena, where the strongly suppressed kinetic energy in these flat energy bands suggests the potential for exotic phases dri...
Erratum: “Ferroelectric capacitor with an asymmetric double-layer PLZT structure for FRAM” [Appl. Phys. Lett. <b>120</b>, 102901 (2022)]
Sub-micron circuit fabrication on diamond anvils for mesoscopic high-pressure experiments
We present a fabrication procedure to produce high-quality liftoff structures on diamond anvils that extend continuously from the culet onto the slanted facets. Feature sizes as small as 500 nm are ac...
Passivation of antimony vacancies by Al3+ ions and anode interface modification for enhancing the efficiency of Sb2Se3 thin-film solar cells
Vacancies of Se and Sb are the most detrimental deep-level defects in the Sb2Se3 film. Herein, an approach is proposed to passivate the Sb vacancies using Al3+ ions. The tris(8-hydroxy-quinolinato) al...
Free-standing sub-THz metamaterial with the high Q-factor isolated electric dipole response
Achieving high-Q resonances in the terahertz frequency range is crucial for applications such as sensors, filters, and emitters. One effective strategy for achieving such resonances involves the use o...
Viscoelasticity characterization of rheumatism based on x-ray induced acoustic computed tomography
Elasticity and viscosity are fundamental mechanical properties of biological tissues, reflecting functional integrity and pathological states in bone disorders. Here, we introduce an approach using x-...
Gate-induced electron transfer effects in monolithic Al–Ge–Al nanostructures
Germanium (Ge) is recognized as a highly promising substrate for a broad spectrum of electronic, optical, and quantum applications, owing to its exceptional properties, including high charge carrier m...
Spin–phonon coupling and phonon dynamics in van der Waals antiferromagnetic CrSBr
As a vander Waals antiferromagnetic semiconductor, CrSBr exhibits unique anisotropy and hosts various physical phenomena (e.g., magnons, phonons, excitons, and polarons), showing great application pot...
Plasmon-induced tuning of cerium oxidation states in Au@CeO<i>x</i> core@shell nanoparticles
CeOx-based nanoforms are widely used in catalysis, or biomedical applications due to their redox activity and oxygen storage capacity. The key parameters determining their surface chemistry are the Ce...
Er-driven magnetic tunability in FePt thin films investigated via high-throughput experiments and microstructure analysis for future HAMR media
This study undertakes comprehensive experimental validations based on theoretical predictions of the impact of Er and Tm doping on the magnetic properties of FePt thin films. Initial theoretical inves...
Intrinsic spin transport in a topological insulator thin film
Topological insulators (TIs) are intriguing materials for advanced computing applications based on spintronics because they can host robust spin effects. For instance, TIs have intrinsically large spi...
Nonlinear Seebeck effect in Ni81Fe19|Pt at room temperature
The nonlinear Seebeck effect, nonlinear conversion of a temperature gradient into an electric current, was observed at room temperature. Based on a second-harmonic lock-in method combined with an a.c....
Membrane phononic crystals for high-Qm mechanical defect modes at MHz frequencies in piezoelectric aluminum nitride
Nanomechanical resonators with exceptionally low dissipation are advancing mechanics-based sensors and quantum technologies. The key for these advances is the engineering of localized phononic modes t...
Anomalous valley Hall effect in two-dimensional <i>p</i>-orbital honeycomb lattice
Anomalous valley Hall effect (AVHE) in two-dimensional materials represents a cornerstone phenomenon in condensed matter physics. While substantial research efforts have been predominantly concentrate...
The effects of vacancies and strain on the magnetism of tellurene
The effects of vacancy defects and biaxial strain on the magnetism of α-Te are investigated using first-principles calculations. The calculated results show that the vacancy defects induce significant...
Quantum dots solar cells under mimic high altitude platform satellites environments
Quantum dot solar cells are solution-processable, lightweight, and low-cost, and their long-term stability makes them attractive to explore for aerospace applications. In this work, we have studied le...